I'm helping a friend with an Acer Aspire 4720Z that had a battery that held no charge, and needed a battery charger as well. I ordered a new battery and charger. The computer was turned off while I replaced the battery, and after turning it on I noticed Windows 7 said there was no battery detected. The odd part is that the computer still runs while the new charger is unplugged. I checked the hardware manager to see if it was recognized there, and there's several listings that all indicate the battery "device is working properly".
I also searched online about driver issue possibilities to no avail. Any help would be greatly appreciated. The new battery is made by TechOrbit.