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Old 07-05-2009, 01:29 PM
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Exclamation Battery DRAINS

I unplug my phone out of the wall charger and it just drains to 48% all the way from 100%. I am running EnergyROM 3.0, and no programs were open at the time. What do I do?
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Old 07-05-2009, 02:01 PM
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Re: Battery DRAINS

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Originally Posted by tkthatruth View Post
I unplug my phone out of the wall charger and it just drains to 48% all the way from 100%. I am running EnergyROM 3.0, and no programs were open at the time. What do I do?
Let the phone run completely dead... you'll find it's really at full capacity but is just indicating it wrong.

Right after you take it off the charger, turn it off and pull the battery for 30 seconds, put it back in and try charging it again if it still says the battery level is low.
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Old 07-05-2009, 02:25 PM
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Re: Battery DRAINS

flash to Stock and flash back, or flash another custom ROM and see if it does the same thing
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Old 07-06-2009, 04:18 AM
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Re: Battery DRAINS

Might be a bad battery. Lithium-polymer batteries are charged at a constant current until they get to a cut-off voltage (usually 4.2V). Then they are charged at that cut-of voltage until the charging current drops to a cut-off current (usually something like 50-100mA). On discharge, the voltage ddrops rapidly to a plateau voltage that is the nominal voltage printed on the battery. This is 3.7V (3.4V for Li-ion). Charge it and then pull the battey and see if you can measure the voltage. It should be something close to 4.2V (I'm assuming it's a Li-polymer battey. If the voltage is good, it's probably a calibration problem (I assume the procedure that ShadowDrake described is designed to do this). If the voltage immediately after charging is closer to 3.7V, then either the battery is bad or the phone is measuring the incorrect cell current/voltage (probably the former rather than the latter).
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