I've been checking out batteries for the Kaiser and I noticed something that I've never seen with other phones and pdas, the battery used in the Kaiser is a Lithium Polymer. If you're not familiar with that type of battery, its a battery commonly used for its lightweight properties and high current discharge rate (rate is based on battery of course). Most phones, pdas, electronics used Lithium Ion. For RC helis, Lithium Polymers or Lipos are very common and are treated with much care and respect. There have been a few accidents where Lipos have caused fires whether used in RC or being charged in the car and home. Lipos do not like being discharged pass a certain voltage, usually 3.0v and require balancing between cells which helps promote longevity. Since the battery used is only one cell 3.7 nominal (4.2 charged) balancing is not an issue, however complete discharge maybe another one.
Just thought I'd share a bit of information with everyone.
My old Sony Ericsson T68i used Li-Polymer also.
Many/most of the LiIon batteries in circultation for electronic devices today are LiIon Polymer batteries. The two types have nearly identical characteristics and performance properties. Both types of batteries can be extremely sensitive to heat and can produce a great deal. Both also have safety circuits when manufactured by a reputable company to prevent overcharging and the associated heat buildup and over use to prevent lithium plating which will effectively kill the battery. It's not at all uncommon for LiIon to be used to refer to both unless one is being extremely precise.
I wasn't aware about Lipos being used in other phones, good to know. I don't doubt manufacturers with proper safety devices as far as charging. Though I wish I could say the same about incidences from Lipo fires where reputable equipment was used to charge Lipos. My experience with Lipos have been with larger discharges and faster charging so I wouldn't think that we would have much to worry about. LiIons and Lipos are far as my hobby with RC helis and other vehicles stand as different as night and day, one being as safe as jello when abused and one being as dangerous as destroying a garage when neglected.
It's more a matter of degree. I've had a LiIon go "poof" in a cheap charger once. Luckily, I was sitting in the room where it happened so I could put it out before there was any real damage to anything other than the charger and battery. The polymers are more sensitive to heat, and have had a rash of manufacturing defects that have gotten lots of press.
If it's a quality battery and a quality charger, there shouldn't be many issues.
4 terminals...
one plus..
one minus...
what are the other two? I read the service manual but didnt see anything.
Typically Li-ion batterys have the extra terminals to communicate with the battery about certain conditions of the battery. Typically it is connected to some thermisistor which is a resistor that changes resistance based on temperature. And it uses that change to calculate the temperature of the battery, because if the battery gets too hot it could explode. Li-ions are susceptible to thermal runoff which is why most incorporate this.
Has anyone bought a higher capacity battery and found it to be good?
I've seen some 1500mAH batteries very cheap but have seen people reviewing them saying they are don't last as long as the 1230mAH HTC battery due to being bad quality.
Is there a good quality 1500 (or higher) capacity battery around - one that doesn't make the phone fat and ugly?
+1
I would also like to know this. When I had a Vibrant 3g, I was able to buy an oem vibrant 4g battery for $20 and it was 150 maH bigger, but same physical size and voltage. Worked great. I know there are extended batteries, but they are usually bulky. I have found that aftermarket slim extended batteries are worthless, and often perform less than the stock one. I even bought a mugen slim extended battery for my Mytouch 4g and at first it was phenominal. But within the first 4 full cycles, it was performing at 60% what my stock battery did. I reconditioned it, reflashed the rom from a full charge, etc. Surprised me, cuz mugen gets a lot of good reviews. Best bet is to get a power skin, or get a bulky extended battery. Power skin is bulky, but it's a uniform bulkiness, so not as awkward as the bulge of a standard extended battery. Hope this helps.
I want bigger battery for my Note2, but only quality battery l found is 6000mAh with battery door, which made from Note2 2cm thickness ugly beast.
Existing some (REAL) 4000-4500mAh with battery door which made Note2 maximum 1,3-1,4cm thickness?
cryingfreeman22 said:
I want bigger battery for my Note2, but only quality battery l found is 6000mAh with battery door, which made from Note2 2cm thickness ugly beast.
Existing some (REAL) 4000-4500mAh with battery door which made Note2 maximum 1,3-1,4cm thickness?
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There is a source I just found for 4200 mAh battery which supposed to be the same dimensions as OEM 3100 mAh battery. I'm waiting to receive it in a few weeks from HK ($8.99 shipped) and will review and report about its actual capacity. It shouldn't be less than 3100 mAh, I hope, and if it really can deliver 4200 mAh - that would be awesome while keeping original battery door and whatever case you are using now.
In case you're wondering what you might get one of these, just search ebay for 4250 mah note2 gold. Whoever in Cina makes these, makes them for a lot of brands.
robsquared said:
In case you're wondering what you might get one of these, just search ebay for 4250 mah note2 gold. Whoever in Cina makes these, makes them for a lot of brands.
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The problem is when you search on ebay you get only 2 choices, one for $25 and another one for $35. And although picture shows a battery with Note 2 label, it has 4 contacts instead of 3 contacts like on OEM battery. I have no idea what they are selling. The one I'm getting is labeled as 4200 mAh Gold model and for a fraction of the price, it has correct 3 contacts and even water damage indicator. But I have no idea about its quality or the actual capacity until I get it. If its everything I expect, I will review and post a link to it.
vectron said:
There is a source I just found for 4200 mAh battery which supposed to be the same dimensions as OEM 3100 mAh battery. I'm waiting to receive it in a few weeks from HK ($8.99 shipped) and will review and report about its actual capacity. It shouldn't be less than 3100 mAh, I hope, and if it really can deliver 4200 mAh - that would be awesome while keeping original battery door and whatever case you are using now.
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l know this cheap chinese **** battery . It don't have real 4200 mAh...
cryingfreeman22 said:
l know this cheap chinese **** battery . It don't have real 4200 mAh...
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You bought it before or read about it online? What is your experience with it? Can you post a link where you got it from? Also, how were you able to determine its not 4200 mAh?
vectron said:
You bought it before or read about it online? What is your experience with it? Can you post a link where you got it from? Also, how were you able to determine its not 4200 mAh?
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Lots of reviews on XDA not just for the note 2 but lots of batteries.
Regardless of it being made in China or not, there are lots of scams out there. Batteries that hold more charge must be physically larger, it's a matter of physics, unless if you are buying a battery with some very advanced rechargeable battery tech, but most batteries are li-pol or li-ion and basically in order to have more charge you need more cells, which = bigger battery.
Anyone selling a "extended" battery that is the same size is lying.
The Gold batteries are good quality OEM size batteries, but they won't hold more charge
Daemos said:
Lots of reviews on XDA not just for the note 2 but lots of batteries.
Regardless of it being made in China or not, there are lots of scams out there. Batteries that hold more charge must be physically larger, it's a matter of physics, unless if you are buying a battery with some very advanced rechargeable battery tech, but most batteries are li-pol or li-ion and basically in order to have more charge you need more cells, which = bigger battery.
Anyone selling a "extended" battery that is the same size is lying.
The Gold batteries are good quality OEM size batteries, but they won't hold more charge
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Yeah, you are absolutely right. I'm not being naive about it, just hoping that perhaps they were able to increase cell density, somehow?!? I'm not holding my breath it will be 50% increase or so. In my previous Droid X I had original OEM 1500 mAh battery. Then, after 3 months Motorola came up with 1850 mAh extended battery in the same form factor (even so they offered a new battery cover, it was just a hair thicker and fit original battery cover perfectly). And that one was a significant improvement over original capacity. So, I'm just hoping that someone was able to push an envelope to increase density to give at least 20%-25% boost without sacrificing the size. As much as I'm enjoying my current test of Seidio Innocell (4500 mAh) with ACTIVE Extended case, I miss my slim fit UAG case
vectron said:
Yeah, you are absolutely right. I'm not being naive about it, just hoping that perhaps they were able to increase cell density, somehow?!? I'm not holding my breath it will be 50% increase or so. In my previous Droid X I had original OEM 1500 mAh battery. Then, after 3 months Motorola came up with 1850 mAh extended battery in the same form factor (even so they offered a new battery cover, it was just a hair thicker and fit original battery cover perfectly). And that one was a significant improvement over original capacity. So, I'm just hoping that someone was able to push an envelope to increase density to give at least 20%-25% boost without sacrificing the size. As much as I'm enjoying my current test of Seidio Innocell (4500 mAh) with ACTIVE Extended case, I miss my slim fit UAG case
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Go to this thread and go down to post 9. I posted my experience with a "gold battery" only to find out the label was just a print to scam buyers. Not only that, the battery never worked and when I was charging it, it started getting dangerously hot.
All in all, stick with branded items that have a good reputation. I paid $675 outright for my phone, and will spend $5 more for the branded battery to keep my pocket from bursting. Also, the external battery charger that come with Hyperion and Onite batteries output .350 A +- .05A so it will slow charge a battery overnight, keeping your battery at its peak life for a longer amount of time.
i have heard that the embedded batteries which are found in HTC One and Iphone last longer since they are shielded from humidity due tot he zero gap construction of these phones
So is that true?
it does last longer but reason for that battery is Lİ-polymer
I highly doubt there is less humidity or that it could affect battery longevity.
Most mobiles have come with LiPo batteries for years.
I'd be surprised if they last appreciably longer than batteries in other phones.
Keeping the temperature down, charging more slowly and not deep cycling them are likely to have the most benefit.
in my expereince removable batteries actually wear out faster.