I have had on-going issues with my laptop battery. I have a Compaq V2630US. My OEM battery wouldn’t charge more than 10%. If I un-plugged the AC adaptor The chare would drop from 10% to 5% in 30 seconds then die at its normal speed from there. I bought a new battery. It came with a 50% charge, I charged it overnight, it read 100%. It discharged at a nice and slow pace to 25% then I plugged the ac adaptor back in and turned the laptop off to charge. Two hours later the battery is only up to 29% and if I unplug the ac adaptor the laptop powers off. I know my ac adaptor is good because if I unplug the battery and leave the ac adaptor plugged in, the laptop stays powered on. Did I just get a bad battery?