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Portable power packs (on the go chargers) solar+USB

I often spend time away from mains power or places where i will be able to safely leave a phone ( or other gadget) plugged into the mains on charge un attended.
At the moment i hav been using a power monkey explore solar charger to keep my gadgets alive, this can charge via the its solar panel, or via the mains, and then charge my gadgets up overnight ( usually ) in my tent, so my phone is/was ready to go with a full charge in the morning, and the power monkey could then go in the sun, or sit connected, and un attended on a mains supply during the day.
Ice just done an expreiment with the power monkey explore to see how it copes with the increased demands of the Motorola Defy, and i dont think it will be able to cope as the charger has virtually exhausted itself getting my Defy from 20% to 60%, and its slightly warm to the touch.
The charger battery is rated at 2200mah, and i have had the device for a few years, so that rating may be a little lower in reality.
So has anyone got any recommendations for a portable charger/solar charger that could charge the defy from 20% up to 100% for three days or more?

A 2,200mAh should do the trick on the Defy's 1,500mAh battery, otherwise the charger's battery is exhausted and needs replacement. F.e., my 1,000mAh A-solar charger adds (only) 40% max. w w w.a-solar.eu

Take a look at the JBC rugged phones and the chargers they come with. It is a usb charger with a mechanical coil. You need to wind it to charge it up. Something like that will be a long term plan that will stay with actually no replacable parts.
Something like this.
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Veho Pebble: 5000mAh battery. Will charge the Defy at least twice easily. Have one myself and it's great.

Have you thought about the powergorilla or the minigorilla

The power monkey Explore test may have been a little bit short, as the unit was only charged up showing all the bars on the LCD screen, and not the green LED as well.
In the meantime ive picked up a New Trent Extreme IMP1000 with a Li-poly battery rated at 11,000Mah the unit feature a DC input jack, a power button with 3 LEDS to indicate remaining charge, and a single USB power output.
I usually plug my defy into the IMP1000 charger after a day at work, with the battery down to 40/30% let it reach 100% charge( about 1 1/2 to 2 hours) unplug it, use the DEfy in the evening then leave it hooked up overnight to the IMP1000
This will be the 3rd night that i have repeated this process with the IMP1000 and it still has 2 out of 3 LEDs left on its power gauge, phone taking charge as normal.

How about using the powerchimp but with some more powerfull AA batteries like these
http://www.picstop.co.uk/uniross-27...=google&utm_medium=base&utm_campaign=products

I tried a powerchimp, and the batteries inside that got extremly hot ( 2,500mah GP NimH) this is usually caused by a high current drain on the batteries, and it isnt good for the batteries.
As for on the go devices so far, ive got a New trent imp1000 power pack ( which im currently testing ) a power monkey explore, a 4 AA battery USB power pack (two AA batteries in series ) a 4 AA solar charger ( chameleon) that also charges via USB, as well as 5v USB power out
As for other devices that need need power, when im away from the mains, these are: a cannon camera ( with li-ion power pack ), MP3 player, Motorola Defy
As for the New trent IMP1000 charge pack its now on Day 4, its charged my DEfy from 20% 3.681v up to 100% 4.164v in 2 hours and 20 minutes, (measured using the battery status app ) Later this evening, just before i go to bed i will hook it up again for an overnight charge, the Trent IMP1000 power pack is still showing 2 out of 3 LEDs on its power gauge.

Nokia has released a bike charger. You only have to reach about 10mph in order to reach wall socket charger efficiency (1000mA).
I believe they're about to release a micro-USB version of it. However there's an android dude already converting the existing nokia charger:
http://toddlerontour.com/universal-usb-bicycle-charger-nokia-dc-14-conversion/
//Dave

I use a MiniGorilla. Has inbuilt 10000mAh battery and lasts almost 2 weeks on charging my phone regularly without requiring a charge up itself.
Regular charging = ~every 2 days
It also turns itself off once the phone is fully charged to save its own battery.

I have one of these cheap "no-name" emergency chargers than runs on 1AA battery. However I'm pleasantly surprised: it runs up to (or rather down to) 0.7-0.8V, it has reasonable efficiency (and consequently it doesn't heat up too much), might be a good option if you have to maintain some bunch of AAs already (if you have a camera with 4AAs you already need to have 8 if you want spares).
I also have 2 small solar panels but they're more of a gimmick. Sure, even the small old one will run a small radio directly but we're talking 10-20mA. The radio will otherwise run off 2AAs for countless weeks (especially if you turn it on only when listening to it), it wouldn't even make sense to run it on rechargeables.
I run the numbers based on specs on solar chargers that catch my eye occasionally and it seems that you need to charge for quite a few days from the solar panel to pay for its own size and weight; that is in ideal conditions - in reality it will be more like over 1 week, possibly more (or rather never unless we're talking some serious expedition without access to power for multiple weeks, is there even such thing nowadays?).
However this MiniGorilla looks really great. Not cheap but it will even charge notebooks (or most likely netbooks). I already marked it as a potential gift, it belongs to the category "I would never buy one but if I have it I would use it regularly" (as opposed to the category "expensive crap that ends up in the attic if I don't re-gift or ebay it quickly").

d210 said:
I have one of these cheap "no-name" emergency chargers than runs on 1AA battery. However I'm pleasantly surprised: it runs up to (or rather down to) 0.7-0.8V, it has reasonable efficiency (and consequently it doesn't heat up too much), might be a good option if you have to maintain some bunch of AAs already (if you have a camera with 4AAs you already need to have 8 if you want spares).
Click to expand...
Click to collapse
thanks for the tip you've reminded me, that i have unused branded (philips) emergency chargers - with mini usb output and recently purchased mini to micro usb cable and a bunch of old aa's
looks like it's working

2Pints said:
I tried a powerchimp, and the batteries inside that got extremly hot ( 2,500mah GP NimH) this is usually caused by a high current drain on the batteries, and it isnt good for the batteries.
Click to expand...
Click to collapse
Given the low cost of good quality NiMh batteries these days i don't see the problem, if you lower the life span to only 100 charges (which is highly unlikely) its still only pennys. I use a 1 hour charger for my NiMh batteries and the batteries are too hot to handle when they come off charge and i have to say i have not noticed a shorter lifespan.

[Q] Standalone BAttery FAST CHARGER?

Well, I have about 3 batteries for my Optimus 2X, and I'm managing of buying another extended one (3500mAh).
I have an external standalone battery charger which is the usual crap you'll find on eBay...there's no choice , they are all the same model
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Now, the problem is that this charger, has a ridiculus current of 350 mAh +-50mAh
which is waaaaaay not enough to charge the battery in a decent time.
I mean the standard 1500mAh battery charges in something like 7-8 hours.
So the new extended one will take a full day to charge, at least this will not surprise me, considering the time it takes to charge the standard one.
So I'm searching for a wall charger that can charge batteries standalone... and that has a decent current I mean 800mAh or above.
It could be also integrated into a dock/cradle for the phone.....like the KiDiGi one (that should have a 800mAh current for the battery and 1000mAh for the phone), but it should have enough place to put an extended battery on it, which the KiDiGi one has NOT.
Hoping the community has some rabbits in the hat for me.
Thanks

http://cgi.benl.ebay.be/AC-Battery-...537522?pt=PDA_Accessories&hash=item2c5ec51db2
it says
100% brand new,High quality
External desktop battery charger,more convenience to charge your standby batteries.
Battery charger with USB:Charging stop once battery is full,Nerver overcharge keeps the performance and life of
the battery more convenience to interchange your standby batteries
Input AC:110-240V 50-60Hz 0.2A
Output:5V 800mA
Plug type:US standard

thank you for your reply but it is the same charger i already have.
That specs are the specs for the USB output.
If you look into the photo of your link, you'll see that the battery itself is charged at the usual 350mAh....
the specs are the same of my charger....sadly

I should say thx to you, it was thinking of buying 1 to charge my extended 3500mah battery I just purchased from ebay
I just got my 3500mah delivered is charging right now in my phone
looking for a charging dock to

let me know how long did it take and if it was with phone off or on, and via wall charger o USB.
I ordered mine 3 days ago...

The battery was already charged to 95%, let it charge for 2 hours to be sure it is full, deleted battery stats now it's 5 hours ago and still 86% wifi as being on all the time, mail sync every 30minuts, and lots of Tapatalk, 30minuts of gaming,
Wen battery is empty I will full charge and let you now how long it takes
Sent from my Optimus 2X using Tapatalk

i put my phone on the charger with total empty battery (3500mah) on 11PM
at 7AM wen I waked up , the phone was full charged , so full charging overnight is posibble with the original charger
don't now how long it take in total , could not see because phone was total dead wen i put it tot charge , turned phone on in the morning and battery was total full

Thank you. So it took 9 hours with phone shutted off.

Less than 9hours I was asleep so don't know exact time
Sent from my Optimus 2X using Tapatalk

Charged @1%left after 2hour 30min battery was full charged (3500mah batt) with stock lg charger
Sent from my Optimus 2X using Tapatalk

Thank you for your reports, phone was switched off, in this last case?

TheBo said:
Thank you for your reports, phone was switched off, in this last case?
Click to expand...
Click to collapse
no turned on

http://www.focalprice.com/MC312B/SEA_LG_Optrmus_2XP990_Portable_Cradle_Charger_Black.html
Quite expensive, but it outputs 1A
Good thing is that the adaptor is separate so you can use your own adaptor, maybe a 2A one.
But it looks shady cause the picture on the box doesn't look like Optimus 2X
http://www.dealextreme.com/p/dual-u...th-extra-battery-slot-for-lg-optimus-2x-73031 <-- if you're more comfortable with dealextreme
I went through the thought of getting a extra battery as well but the price and the extra stuff is just isn't worth it.
When i stop using the optimus 2x or if it dies i will have a almost useless cradle with useless batteries.
I went down the path of getting backup battery instead since i can use it on other devices. (the universal type)
http://www.dealextreme.com/p/univer...wer-port-green-white-flat-plug-110-240v-55661
EDIT: you can also get something like this but the output isn't great but you can use it for old phone battery and any battery which is 3.7V
There are a lot more like this, you can take your time to find the perfect one.

Kag said:
http://www.focalprice.com/MC312B/SEA_LG_Optrmus_2XP990_Portable_Cradle_Charger_Black.html
Quite expensive, but it outputs 1A
Good thing is that the adaptor is separate so you can use your own adaptor, maybe a 2A one.
But it looks shady cause the picture on the box doesn't look like Optimus 2X
http://www.dealextreme.com/p/dual-u...th-extra-battery-slot-for-lg-optimus-2x-73031 <-- if you're more comfortable with dealextreme
I went through the thought of getting a extra battery as well but the price and the extra stuff is just isn't worth it.
When i stop using the optimus 2x or if it dies i will have a almost useless cradle with useless batteries.
I went down the path of getting backup battery instead since i can use it on other devices. (the universal type)
http://www.dealextreme.com/p/univer...wer-port-green-white-flat-plug-110-240v-55661
EDIT: you can also get something like this but the output isn't great but you can use it for old phone battery and any battery which is 3.7V
There are a lot more like this, you can take your time to find the perfect one.
Click to expand...
Click to collapse
Thank you for your time!
Sadly none of them specifies the output current for the battery 4.2V @ xxx A
They only say that the usb port is feeded with the 5V USB spec voltage and the current of 1 A...this is the current that the phone receives and not the standalone battery. It's pretty easy to find simple wall charger to plug directly into the phone that will output 1A of current @ 5V.
The last one you linked seems to do, althought not explicited, 500mAh both on the USB 5V and on the 4.2V of the battery pins
Thank you in any case.

TheBo said:
Thank you for your time!
Sadly none of them specifies the output current for the battery 4.2V @ xxx A
They only say that the usb port is feeded with the 5V USB spec voltage and the current of 1 A...this is the current that the phone receives and not the standalone battery. It's pretty easy to find simple wall charger to plug directly into the phone that will output 1A of current @ 5V.
The last one you linked seems to do, althought not explicited, 500mAh both on the USB 5V and on the 4.2V of the battery pins
Thank you in any case.
Click to expand...
Click to collapse
Most of such device don't regulate the current, usually just the voltage.
As long as the AC to DC adaptor can provide everything will go through (meaning the output current of the adaptor will be the rating going to the battery/phone or whatever)
And how much of it is used up depends on the device drawing power.
Note: you do have to beware of some made in china adaptors as the rated specs sometimes do not match up to the actual.

remaining on topic I think this could be useful 0.8A http://www.dealextreme.com/p/0-8-lc...-car-power-adapters-for-digital-cameras-41216
Regarding the 3500mAh extended battery this is the measured capacity after ONE cicle of charging/discharging from Battery Monitor Widget
I think this could be useful in the future, I will update it if the capacity increases meanwhile I charge/discharge it...at least for the few first times this could be possible.

Battery
I think the stock one is good to have ! No need to change !

My eBay charger works fine, charge time is long yes but it charges about as long as my battery lasts did I'm never running out.
Sent from my LG-P990 using Tapatalk

pordokoftis said:
I think the stock one is good to have ! No need to change !
Click to expand...
Click to collapse
yes but it is useless regarding the focus of this topic.
We are discussing about standalone spare batteries chargers.

I think it is better to charge your 3500mah (or 2500mah?) battery using a 2amp usb adapter. Charging a lithium battery at anything 1c and below is very safe. So if you're charging 3500mah (3.5amp) battery on a 1amp charger, it's only like 0.3c which is way less. Atleast if you use a 2amp charger, you can charge your big battery around 2hrs tops. But there is no desktop charger with 2amp output though, just usb adapters, mainly for ipads.

[Q] Slow charging on device

Hey,
I recently bought a used Xperia Z1 and everything is great apart from the charging. It is horrendously slow whilst charging.
I've tried charging from my home PC, office PC, two seperate AC (wall) outlets and it makes no difference. Out of curiosity I downloaded 'Battery Widget Reborn' and it showed that my device will charge 1% every 6 or so minutes and will take 12 hours for a full charge to 100%.
My Nexus 4 charged to 100% within two hours usually so this leads me to believe that something is wrong with the phone.
Normally I would go consider the battery as the main culprit but after finally getting to 100% it doesn't seem to drain particularly quickly as you would probably expect from a faulty battery. It would be nice to compare these statistics to the rest of you to see how abnormal this is.
This moves me on to the the USB slot on the device - is it possible that it is faulty and therefore pulling very little power (barely enough to charge the device whilst using moderately)?
-
If this is the case then has anyone had any experience with getting their Z1 USB slot repaired or should I just try to take the device back and get a different Z1 from somewhere else?
Does anyone have any other suggestions for me to try? There is a Sony store in my city so I could perhaps go to them for advice (as long as they don't empty my wallet)...
Thanks!

I had same experience with not original Magnetic Cable. All what is not Genuine can compromise the functionality of your device. Check first the wall charger, it have to be 0.5VDC 1500mA. then check the cable or try different one. I will recommend the Original Dock DK31. In 2 hours mine is fully charged with that one.

im not sure but mine charged extremely slow aswell but it has gotten alot faster
im assumings its some kind of break in period or something

Is the usb cable original? Or else you could get the charging dock
Sent from my Xperia Z1

ragingbull said:
Hey,
I recently bought a used Xperia Z1 and everything is great apart from the charging. It is horrendously slow whilst charging.
I've tried charging from my home PC, office PC, two seperate AC (wall) outlets and it makes no difference. Out of curiosity I downloaded 'Battery Widget Reborn' and it showed that my device will charge 1% every 6 or so minutes and will take 12 hours for a full charge to 100%.
My Nexus 4 charged to 100% within two hours usually so this leads me to believe that something is wrong with the phone.
Normally I would go consider the battery as the main culprit but after finally getting to 100% it doesn't seem to drain particularly quickly as you would probably expect from a faulty battery. It would be nice to compare these statistics to the rest of you to see how abnormal this is.
This moves me on to the the USB slot on the device - is it possible that it is faulty and therefore pulling very little power (barely enough to charge the device whilst using moderately)?
-
If this is the case then has anyone had any experience with getting their Z1 USB slot repaired or should I just try to take the device back and get a different Z1 from somewhere else?
Does anyone have any other suggestions for me to try? There is a Sony store in my city so I could perhaps go to them for advice (as long as they don't empty my wallet)...
Thanks!
Click to expand...
Click to collapse
Hi,
The phone usually takes about 3 hours to charge completely in my case, using the standard sony adapter given with the phone, probably i would suggest if you could borrow some other charger and try charging so that you can isolate the issue.(Please note the rating of the charger which you intend to charge for testing)
Also i noticed that the standard charger given by sony is 1.5A rating, so i usually charge with the charger given for my samsung tab 2 which has a higher rating and this one does a super charge in nearly 2 hours or less.
Thanks
Santosh

santro652 said:
Hi,
The phone usually takes about 3 hours to charge completely in my case, using the standard sony adapter given with the phone, probably i would suggest if you could borrow some other charger and try charging so that you can isolate the issue.(Please note the rating of the charger which you intend to charge for testing)
Also i noticed that the standard charger given by sony is 1.5A rating, so i usually charge with the charger given for my samsung tab 2 which has a higher rating and this one does a super charge in nearly 2 hours or less.
Thanks
Santosh
Click to expand...
Click to collapse
i have same problem using micro usb for charging so slow.
now i'm using magnetic cable and use 800mA charger, i'm not using 1,5A sony charger because it make my mobile so hot.

Takes around 3 hours using Sony's original magnetic charger

mm79k said:
Takes around 3 hours using Sony's original magnetic charger
Click to expand...
Click to collapse
Not for me. I am having slow charging as well. Using official Sony magnetic cable I have tried a couple different power adapters from Sony including the EP880 and even over night it won't charge it completely. Last night I plugged it in with about 37% left...woke up this morning after about 7.5 hours and it was only at 78%. Have to plug it in via USB to get any decent charging speed.

Spectre51 said:
Not for me. I am having slow charging as well. Using official Sony magnetic cable I have tried a couple different power adapters from Sony including the EP880 and even over night it won't charge it completely. Last night I plugged it in with about 37% left...woke up this morning after about 7.5 hours and it was only at 78%. Have to plug it in via USB to get any decent charging speed.
Click to expand...
Click to collapse
Then I asking my self what is different in the original Dock DK31 as it charge my phone very well.
I think that you think you have original one magnetic cable but it's not..

eclyptos said:
Then I asking my self what is different in the original Dock DK31 as it charge my phone very well.
I think that you think you have original one magnetic cable but it's not..
Click to expand...
Click to collapse
I think I would know if I had the original one or not. It came with my phone and is Sony branded.
Sent from my Surface with Windows 8 Pro using Tapatalk

Charges an hour and 30mns for me everything is original
Ps. This is a used phone got it from swappa
Sent from my C6906 using XDA Premium 4 mobile app

uhuhuh
mine took 5 hours from 0% ~> 24%

My z1 charges fine if i dont let it get below 40%. If i let the battery drop down to around 10% it takes a long time to reach 40% and then charges normally. It doesn't matter what method i use for charging it still charges the same, one observation i did make though is that when charging from a low percentage up to around 30% the phone gets very hot so it might be a good idea if we don't cycle our phones batteries so low?

I bought this phone in september this year .. the first time I charge it only takes 3 hours to full from 18% ~ 100% .. but by now it takes 24 hours for the full amount of 8% ~ 100% (︶︹︺)

solution?
Spectre51 said:
Not for me. I am having slow charging as well. Using official Sony magnetic cable I have tried a couple different power adapters from Sony including the EP880 and even over night it won't charge it completely. Last night I plugged it in with about 37% left...woke up this morning after about 7.5 hours and it was only at 78%. Have to plug it in via USB to get any decent charging speed.
Click to expand...
Click to collapse
Same problem here. Have you solved this problem? Thanks in advance.

fmode68 said:
Same problem here. Have you solved this problem? Thanks in advance.
Click to expand...
Click to collapse
Don't have the Z1 anymore but I never did figure it out. Was very sporadic when it happened.
Sent from my Xperia Z2

If you are really curious maybe grab one of these:
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Shows Volts and Ampere.
They are sold as "usb meter" in eBay/aliexpress for as low as $1.70 from China and actually work quite well.
Helps to easily spot a cheap cables(low ampere) or chargers(lots of varying voltage) that should go to the trash.

I updated to lollipop and this is happening to me now.
Before, I charge so fast, now on lollipop any charger I use is so slow even when turned off
it will take 7 hours to finish charging to 100%

I have the same problem too.. Using original charger and adapter. It took more than an hour to charge from 15%-25% even when the phone is switched off!

I would blame wake locks, cpu activity and network activity.
These phones are fast so fast they wreck the battery.
Try disabling the network or switching to 3G/2G
Have a look for any background apps eating juice.

[REVIEW] Tenergy and Powermod Quick Charge 2.0 Chargers

A review for the following products:
Tenergy AC Wall Fast Charger with Qualcomm® Quick Charge™ 2.0 technology
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Powermod Quick Charge 2.0 Certified D/C In-Vehicle Car USB Charger
Both chargers are as fast as advertised over my stock HTC A/C charger that came with the phone and my Rockfish car charger I've been using since my HTC Vivid days.
They both came in nice retail packaging and the Powermod car charger comes with a nice (but short) USB cable. The Tenergy wall charger has an LED on it and it is blue when an non QC 2.0 device is plugged in and turns green when a QC 2.0 compliant device is plugged in. Unfortunately the car charger doesn't have this feature. It has a blue light that rings the device but only indicates that it has power. It doesn't change color when a QC 2.0 compliant device is plugged in.
I have found that both of these chargers will not charge my Asus Transformer TF201. I find this strange because I've used other USB style wall chargers with my Asus data cable (the transformer has a proprietary changing port connector) that worked just fine. Still doing research on that one but I'll not be using these to charge my tablet. I just wanted to point this out as some of these QC manufactures say they are backwards compatible with most devices. YMMV.
I've been using both for about 3 weeks and am very happy with the performance of both units.
Below is data from a series of comparison tests to show how much faster the Qualcomm QC 2.0 chargers are over stock type chargers. The data in the HTC vs. Tenergy charger is an average of 4 charges per device. The HTC vs. Tenergy temperature comparison chart is through one full charge cycle from below 20% to 100%. As you can see the QC 2.0 does charge at a higher temperature. I also took the temperature while charging on QC 2.0 with my DotView case on and at 50% the temperature on the back of the case was 91.4 F. I have taken my phone temperature after heavy gaming and the back has actually gotten hotter just playing games than at any time during the charging cycle with QC2.0. I used a IR handheld thermogun we use at work.
The Powermod and Rockfish data is from my commute to and from work that is on average 30 minutes. There are 4 charge cycles for each devise over a 30 minute period.
Conclusion:
The performance of both units is great compared to stock. Since I can already get a full day worth of battery with between 15 and 20% left after a typical day both these chargers just make life easier. If you have to go somewhere but still have 30 minutes before you leave you can "top off" your battery before leaving if you are low. Example, you realize you have less than 10% battery but have some time before you have to leave. Plug you QC 2.0 charger in and get to at least 50% in that time. I feel much better walking out the door with 50% than 10%. With the car charger you can keep your battery "topped off" between destinations. Time will tell on the longevity of the phone battery and the chargers themselves.
I hope you've found this helpful.
I recommend both of these units.:good:

Images do not work here...

OP,
Some links would be nice. I rarely ever have any issues with running out of power like you have stated. I usually charge while i'm at my desk at work all day, and when I sleep at night, and I never have had an issue with an empty battery. I'm sure some people do have trouble with that; like those who spend all day on the phone, but I'd like to see which products you are talking about, OP.
Thanks!

waynerbbx said:
OP,
Some links would be nice. I rarely ever have any issues with running out of power like you have stated. I usually charge while i'm at my desk at work all day, and when I sleep at night, and I never have had an issue with an empty battery. I'm sure some people do have trouble with that; like those who spend all day on the phone, but I'd like to see which products you are talking about, OP.
Thanks!
Click to expand...
Click to collapse
I'm pretty sure this and this is what OP has in mind, but I could be wrong.

Actually I'm not sure why my pictures are not showing up. I have my pictures set to public. I'll move them and try another location as soon as I get to work.
I see the pictures.........anyone else see them?

Pictures are working now. And holy cow..that's some impressive work Thanks for taking the time to test it all!

Thanks for the input.
I have the Tenergy wall charger and I have been pleased with the results. I will probably buy the same car charger you have next.

Glad everyone seeing the data now. I put this together because of all the questions on QC 2.0 that past few months.
BTW - I do crap like this all the time at work so it really wasn't that much work other than gathering the data. The charts etc took less than an hour to create after I had all the data I wanted.

Cheers mate!
Great data indeed
Sent using Tapatalk

abyssis said:
I'm pretty sure this and this is what OP has in mind, but I could be wrong.
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Interesting! Thank you for sharing the links!

Thanks for your input M8!

Nice review,thanks!

I bought the car charger and it is not turning green when I plug my phone into it. Do I need to do something different?

Phrostbite said:
I bought the car charger and it is not turning green when I plug my phone into it. Do I need to do something different?
Click to expand...
Click to collapse
The car charger doesn't indicate if it's charging at QC 2.0 specs. Only the wall charger does that. The only way you can tell that the car charger is doing it's QC 2.0 is by the battery level or using an inline USB current meter that will show the charge rate.
Sorry for the confusion, I'll update my review.

Nexus 4 slow charging with LG original charger - Chargers comparison.

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First thing guys i did not started this with a comparission in mind, i was just troubleshoting my phone but while i was testing all the chargers i have laying the house it seemed to me like a good idea to take note and share my findings. That said lets get to the problem:
Last mont (october 2015) i bought a new battery from official LG retailer it cost me Bs 12000 (Im from venezuela, crazy high prices for us), i did this because a part of my touch screen is dead and i read in several places that replacing the battery may fix that, well it didnt but at least i have a new battery. Anyway, the thing was super expensive, i also bought a LG "Original" Charger + USB cable at Bs 3000 from at respected seller, the Nexus 4 original oem charger fall from a table and died, it wasnt broke just didnt charge anything at all, thats why i bought a new one. I didnt pay much attention to the charging time until like 2 weeks ago, i was playing in the phone with the charger plugged and the battery was slowly discharging wtf?, since then ive been trying roms and kernel settings because i was to lazy to try another chargers until today. I was thinking about ROM and/or Kernel related problem since I updated to Android M about that time (2 weeks ago). So i didnt have idea if it was rom, kernel, battery or charger what wasnt working properly.
My phone setup:
ROM: Cataclysm Oct 27 2015 + SmartRadio Fix
Kernel: Hellscore b87-M (Hellsactive governor, row scheduler, DT2W and USB Fast Charge both enabled)
Method:
I used 2 USB cables, a generic no branded and a samsung one.
In developer options i enabled Stay Awake option so the screen will never go off while the phone is plugged.
I plugged the first charger with the generic cable and let the phone charging until it showed me the stimated remaining time for full charge, then i plugged the next charger (still with generic cable) and rebooted the phone, after boot i wated until it showed me the remaining time to go with the next charger, once i tested all the chargers i replaced the generic cable for the samsung and repeated the process. So i tested the charger twice, one with each cable, and yes i got the same results every time, so iguess this android feture is actually doing his job and saying the truth.
LG Original Charger - Not really original. Lited Output: 1000mAh
Samsung original charger, i bouth this one like 2 years ago like genuine, but is not. Listed Output: 1000mAh Now blury but i remember it was that amount.
Blu Charger from a Blu Jenny TV phone i have. Made touchscreen go crazy. Listed Output: 500mAh
Orinoquia Charger. Orinoquia is a brand selled by the goverment here in Venezuela. Listed Output: 550mAh
USB Charge. Straight from the back panel of my motherboard (MSI B75MA-E33, Windows 10 Pro x64)
Nokia Original OEM Charger. This is from my mom's Nokia Lumia. Listed Output: 750mAh
The Nokia charger was the only one that was actually delivering the amount of power that it says it should deliver. From now on im gona have a hard time thinking about wich charger im gonna buy. Dont buy cheap chargers guys and only buy them from the company itselft when possible or an authorized reseller. Sorry for my english

I always used a 2A Blackberry Playbook charger for my Nexus 4. Had it for three years and when I handed it to my Dad to use three weeks ago it would still do a day and a half normal usage.
Best charger out there. Still using it with my LG G4. Charges super quick.

Your USB cable can also make a difference.

You mentioned that you played with phone while it was charging...Its possible that you had lose contact at same time and cable was not supplying enough current for battery to charge. Just go to battery stats screen and it will show charging mode. If current being supplied is around 500 mA it will shows USB. This has happened to me on various phones including the n4. I usually just turn off wifi and data connnection and turn screen off while its charging and it really charges faster. ( better option would be to turn off phone). My charger is also broken (fell from wall socket on the floor) and it takes abut 3-4 hours to charge the phone.
I have also used friend's nokia charger and they are quite good. You can continue using it.. better use a 1.5 A or 1 A charger ( stock charger output is 1.2A)

I would also point out the Blackberry charger I use has a captive cable which reduces the connection issues.

sarus_b said:
You mentioned that you played with phone while it was charging...Its possible that you had lose contact at same time and cable was not supplying enough current for battery to charge. Just go to battery stats screen and it will show charging mode. If current being supplied is around 500 mA it will shows USB. This has happened to me on various phones including the n4. I usually just turn off wifi and data connnection and turn screen off while its charging and it really charges faster. ( better option would be to turn off phone). My charger is also broken (fell from wall socket on the floor) and it takes abut 3-4 hours to charge the phone.
I have also used friend's nokia charger and they are quite good. You can continue using it.. better use a 1.5 A or 1 A charger ( stock charger output is 1.2A)
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Click to collapse
Thanks ill try to find a charger with that output that actually delivers it.

My 0,05$:
I tried out a lot of chargers for both my nexus 4 & nexus 9 (tablet) and got by far the best results with Nillkin chargers & usb cables (you can by them cheap from banggood.com). Bought 4 so far (home-office-multiple devices): Very fast charge (much faster than original chargers included with both Nexus 4 & 9), very decent build quality, useful USB cable, charger doesn't make any humming noise, etc. Can strongly recommend.

after i had lost my original n4 charger, i used a motorola charger, which delivered max ~600mA or something. then i bought sony cycle energy wall charger CP-AD2. it is very cheap yet quite powerful. i suggest using currentwidget for checking charging speed. sony charger delivers min 700mA max 816mA (i think its the limit of the n4 since sony charger can deliver up to 2A)

ereghro said:
after i had lost my original n4 charger, i used a motorola charger, which delivered max ~600mA or something. then i bought sony cycle energy wall charger CP-AD2. it is very cheap yet quite powerful. i suggest using currentwidget for checking charging speed. sony charger delivers min 700mA max 816mA (i think its the limit of the n4 since sony charger can deliver up to 2A)
Click to expand...
Click to collapse
Thanks for the suggestion ill try that app, didnt know fo his existence jaja

The limit is 1,5 A coz the orginal charger delivers 1,2 and there is always 300-400 mah tolerance
Gesendet von meinem Nexus 4 mit Tapatalk

nowster said:
Your USB cable can also make a difference.
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Click to collapse
I agree.
I'm using a Samsung USB cable with my original LG N4 charger.
It charges twice as fast compared to the original cable that came with the charger.
However, I'm pretty sure it was okay before. Maybe the LG cable is not as durable as the Samsung cable.

Okay!! Yes it is true. I myself now use only the Xiaomi Redmi 2 Prime's charger. As it charges my Nexus 4 far more faster than the real charger.