wierd problem with battery
i was ok with battery for a while on 1.6 , but after i nearly filled 1gb standard card of DR , i found keys to freeze more often. they get unresponsive , and i suspect , they prevent the device from going to peaceful sleep. now i get battery drain like hell , and after 3 days of non-usage , because of a newly arrived Sony Reader 700 , i got a dead DR , and unresponsive to anything.
it refuses to wake from sleep , even with reset hole stimulation , and even when connected to USB , it goes to sleep after 15mins ( a preset for sleep ) and since no LEDs lit , i suspect it stops from charging
any ideas? could it be the nearly filled SD card?