There are still grate devices that still have the battery life to short issue. for this I found a "official" tip somewhere.
Turn your device ON and Charge the device for 8 hours or more,
Unplug the device and Turn the phone OFF and charge for 1 hour.Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, as per the htc executives they have tested themselves and found out the there is a huge improvement in the battery life.
The metods are coming to be tested in next 48 hours in next devices: Nokia N8, Nokia 5800, Samsung galaxy S, Samsung galaxy S Plus, Samsung galaxy S2, HTC sensation XE, HTC one x, iPhone 4, iPhone 4S, Sony Ericsson Neo V, and the result will be posted here. If you have tested it on different devices please leave the result in comments for other readers.
Update:The only one where I saw a bit of improvement was Nokia 5800. Rest of them...maybe the battery is not used enough...
Sources:AndroidAdvices.com, comunity.verizon.com, androidcentral.com,
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