So my battery for N810 just [from a usability-perspective] bit the dust. It technically still works if rebooting every 2-8 minutes counts; I may try charging it with my external charger and see if that helps it any.

So, I stole the battery from my other N810.

But of course I would like both up and running and the spare cheap knock-off battery I have doesn't have a decent capacity.

On ebay, there are two distinct price-points, $5-10 for a "genuine"/blatant knock-off and $30 for a "genuine"(?)/sitting-on-the-shelf-for-years battery.

I'm looking for a new stock battery, one that was manufactured recently, such that it doesn't suck.

Thanks.