unexplained power drain

[prk60091]

i've had some re-boot issues while charging overnite

so this am i unplug the charger and start to play a podcast using media player and i get a low battery warning after 8 minutes of play.... something is very wrong to say the least

[tgalati4]

Try cleaning the battery contacts. How old is the battery? Perhaps it needs replacement. They are only good for ~300 recharge cycles.

[prk60091]

battery is <1 year old

[debudebu]

i've had the same problem lately. do these batteries die so suddenly? i have two nokia batteries that i have used for more than a year. each battery has been charged about 250 times, and suddenly neither of them will fully charge. i left the nokia plugged in last night and the battery was only half-full in the morning. i have been using two different chargers. one is the original charger, and another is for a nokia phone. the phone charger gives a much slower charge but hasn't seemed to damage anything. i have used this charger more often lately, so i'm wondering if i've damaged the batteries or the charging electronics in the n800.

[geneven]

I've seen the problem but haven't paid much attention. I have about five cheap clone batteries and one Nokia one. My impression is that the Nokia one is usually the problem child. I just switch batteries when it happens

[tgalati4]

Batteries develop internal shorts from the breakdown of the polymer laminates. So, yes they do die suddenly. I find rotating 2 or 3 batteries every few months is helpful. They tend to die in 2 years or 300 cycles whichever occurs first.

[TA-t3]

I've seen batteries stop taking charge just like described above. Seems to happen more often with noname replacement batteries, or with old-stock batteries. This hasn't happened with my N800 battery yet though, it's still going strong after 19 months.

[xxM5xx]

Good thing these batteries are reasonably cheap (compared to laptop batteries). I see the BP-5L (N770 and N800) batteries for around $6. YMMV.

[xxM5xx]

http://cgi.ebay.com/NEW-NOKIA-Battery-BP-5L-For-7700-9500-E61E62-N92-N800_W0QQitemZ270282902167QQcmdZViewItem?hash=item 270282902167&_trkparms=72%3A1205%7C39%3A1%7C66%3A2%7C65%3A12%7C 240%3A1318&_trksid=p3286.c0.m14