I would have to say the sidekick from T-mobile.
The larger PDA phones such as the Blackberry tested out as having the longest battery life.
Batteries4less.com have a large selection of new cell phone batteries. The length of the battery life all depends on how much you use your phone and what you use it for.
There is some difference between the phones but you will actually get you battery to last longer by changing the operatin functions. By turning off applications that you do not require your battery will last for a longer period of time between charges.
The phone T700+ has an 8.8 Ah battery claiming to last 150 days in standby.
T-Mobile's Motorola RAZR2 V8 made it onto PC magazine's longest-lasting cell phones list. This model offers long battery life and good voice quality and reception.
Yes you can get a replacement battery for a BT50 Motorola Cell Phone
The battery brand itself doesn't matter. It depends on how much charge the battery can hold. A good way to improve battery life is to charge it only when your phone is down to the last bar . Don't charge it unnecessary.
Cell phone voltages are DC5V-5.5V
If your cell phone will not charge it could be the battery or the battery charger. You best way to find out is to try the battery charger on a similar phone and see if it charges the other one.
Lithium-ion (Li-ion) battery
No, the data is stored in your non-volatile internal memory of the cell phone which has nothing to do with the battery. battery is only for powering the memory and other componets in the cell
the lithium ion inside of it helps it run on a cell phone