The N800 battery, the Nokia BP-5L, is also used in the Nokia E61, E61i and E62. If a battery is compatible with these phones, it should work in the N800 as well.

I seriously wouldn't advise buying unofficial, it may damage your device and it may even damage you in extreme circumstances. It's also such a tiny difference in price compared to the cost of the device itself.


Just because it says Nokia doesn't mean a thing, fake batteries are so profitable that the unofficial manufacturers will go to great lengths to make their batteries look official.

The only way to tell whether your battery is genuine is to examine the hologram sticker on the back, scratch off the black coating along its edge, and enter the revealed serial number on the Nokia battery authentication website:

http://europe.nokia.com/A4382228

This sounds extreme, but they had some really bad publicity here in Europe a few years back when a string of fake Nokia batteries exploded. When it emerged that they were fakes, Nokia said "it's okay, we had nothing to do with it, they were fakes", but they were such convincing fakes that the press said "if we can't tell real from fake, how can we trust any batteries?". This is why Nokia started adding scratch-off serial number panels, so people dared to buy replacement batteries.