new battery for laptop,worked, recharged it, then it died. Shows 100% charged still

[kuldkuub]

Compaq Presario CQ61

Model: CQ61-405S0

Win7 64bit

No error messages.

Problem:

Computer worked fine with last battery, then the battery capacity went bananas and on boot it strongly recommended to replace the old battery with an new one, so I did. Clicked the new one in, it showed 20% charged, then shut down computer and plugged in power cord to charge it for at least 12 hours like the manual what came with the battery said should be done on first use. Now it won't reboot without power cord and other than windows powermanager saying it's 100% full, battery seems to be completely dead.

Googled it for about 5 hours, tried most reasonable things, like unistalling the drivers for battery in Device Manager, held down the power button for an minut if not more, pluged the battery in and out etc. Several times, with different orders. Still the same. When computer works and I plug the powercord out, it's Instantly powering off.

[Danjen]

I think you may have a broken power jack where the power adaptor plugs into the notebook. There are two mechanisms in the jack and circuitry.  One for notebook power and one for charging the battery.  Part of the jack could be damaged or part of the circuitry.  Try the old battery again and see if it acts different.

[kuldkuub]

Thank you for that idea, tried that. Old battery functions for a short while, and works fine for small ammount of time, but the new seems to give no electricity what so ever.

[Danjen]

I would have to say it is a bad or incompatible battery even though it is new.