Major battery problems
 

Man, i'm sorry i'm posting so many new threads, but I just bought my n770 off eBay and I need to know if something is wrong so I can return it before it's too late.

Just this morning, I unplugged my 770 from the charger, fully charged, and it immediately flashed a low battery warning followed by "recharge battery", then it shut off. This comes following a period of very bad battery performance. I was running OS 2007 HE before, and I couldn't even get 4 hours of standby time. I thought that it was just the experimental os, but I just reflashed with 2006, and the problems continue. Just yesterday, I unplugged it, again fully charged (supposedly), and it instantly went to 3 bars. It was at 2 bars in about half an hour (of usage) and was dead within 30 minutes thereafter. That's an hour of usage, nothing close to what I should be getting. Is there anything I might be doing to produce these problems? I got an amazing deal on the 770, and it's perfect otherwise, so I would hate to send it back.

Re: Major battery problems
 

My 770 have about 4 days in standby, 3h of video (medium light), and about 1h of wifi.
I had some problems with an OEM charger, but no with the nokia one.
In e-bay you can find a big deals in batteries for bout 3€.

Re: Major battery problems
 

I'm leaning more towards a bad battery, I haven't seen anyone complaining about the charging circuity failing on a 770 here. I'd pickup a new battery first and try that.

Re: Major battery problems
 

Ok. I don't know how long it will be until I can get a new battery.

Also, my charger makes a fairly audible buzzing sound. I know it's supposed to, but this sound seems a little off. It's a little more audible then I think it should be. It would make a lot of sense if it was the charger and not the battery, since I have had other problems with it too. For example, I plug in the 770 and it says "Charging" like normal, but then, about 2-3 seconds later, it will pop up a weird "Not Charging" message. Then, I usually either have to shut down the tablet and wait for it to charge without the OS loaded, or unplug the charger and wait a while.

Re: Major battery problems
 

Also, I just realized, my tablet never reaches full charge. Whenever I unplug it, it is when the icon is still displaying the charging animation, not the fully charged icon.

Re: Major battery problems
 

Sounds like a bad battery. It should charge to full in around 3 hours or less, with the original charger (which should provide some 800-900 mA at 5 volts). If you want to try another battery you should be able to find one in any Nokia shop, as it's a standard battery used in some Nokia phones too.

Re: Major battery problems
 

This commonly happens when the charging current and/or voltage isn't high enough. I'd suggest trying an alternative Nokia charger.

Re: Major battery problems
 

I've just plugged the charger into another power outlet. It was previously on one of those cheapo extension cords with the three non-grounded outlets on the end (like the ones you use for christmas lights) with two clock radios (i'm a very heavy sleeper :) ) Now, it's not making any real audible noise, so I think I just found the problem. I'll tell you if it worked or not at about 3:00pm, I need to go take a final exam now :).

Re: Major battery problems
 

Ah yeah, I've seen this too, while using an old Nokia charger with the old-pin to new-pin converter. It turned out that the old-style charger (some? all?) wasn't providing full 5V. I guess that was ok for older phones. The N800 needs regulated 5V.

Re: Major battery problems
 

Okay, I just came home. The icon is still the animated "charging" one. Is the icon supposed to change to indicate it's done charging? I was just assuming that it did, I don't think i've ever seen it change, come to think of it.