Originally Posted by coolkarim
How can I charge a totally flat (ie new) battery?
I bought 2 new batteries on ebay for my curve.
for mains charging I get a battery empty icon that never goes away
if I use USB I get the same. but sometimes the LED flashes
I cant believe they are duff batteries. something funny going on
Sounds to me like those batteries are dead. LiIon batteries have a safety-mechanism built in that disables charging once the battery is totally drained.
Usually, batteries don't get drained completely, even if you leave them in until the device turns itself off. But some devices will keep on draining battery power after the safe point has been reached and the battery goes dead. There's nothing you can do to re-activate such a battery.
The safety-mechanism is in place because entirely drained LiIo batteries can explode when their charged again.