I bought an OEM 1880 mAh BH6X from a reputable seller on eBay. It's the one that still fits with the standard door. I put it in my phone and charged it.
When I turned it on, it started its display at 0%, then rapidly changed from 5 to 20 to 60 to 100. As soon as it disconnected from the charger, it turned off. Upon plugging it back in, it repeated the same behavior. When the phone booted back up again, it put me in recovery, the sign of the phone believing its battery had died.
Does that sound like a bad battery to you, or is it possible that it had a bad connection at the terminals or a software issue? I'm on 2.3.340 with Darkslide 4.2. I haven't tried it on any other ROM.
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