Laptop power on battery problem
I know what you're thinking but I couldn't make a good title for the thread to explain...
The battery does hold about an hour and a half of charge. Yes it does need a replacement, but I have tested this same thing with a good battery with the same results.
It is a Dell Latitude D830. Nothing special. Just something I'm working on to resell for cheap. But it won't power on when the AC power is not plugged in. With only the battery in it shows no signs of life at all. As soon as I plug in the AC adapter it will power on with the power button and I can immediately unplug the adapter and the battery will power the laptop from that point on. If I shut it down with the adapter plugged in and then unplug it there's no powering it on until I plug it back into the the AC adapter. If I gracefully shut down the operating system with it on battery it has been able to turn on with the battery if I do not plug in the AC adapter between shutting it down and turning it on. If it is not gracefully shut down (hold the power button down for a hard shut down) then the AC adapter will need to be plugged in in order for it to turn on.
The BIOS version is the latest on Dell's website. I've tried resetting the BIOS as well by pulling the BIOS battery for awhile. It is either BIOS or motherboard related. If it is BIOS I'm hoping maybe someone has seen this before and has fixed it. If it's motherboard I doubt it's fixable but hey, maybe someone knows anyway. It's not OS related. It does the same thing without a hard drive installed and the OS doesn't boot until the computer POSTs anyway which it obviously won't do if it doesn't turn on.
Any last ideas on this? May just sell it as-is to someone who will keep it plugged in if I have to, but if I can figure this out it would be cool.