i have a Dell 610 laptop, with power cord connected the battery charging light is on, i push power button all 3 led lights by power button come on for couple of seconds and then shuts off! i have tried all the removing battery and power cord stuff but doesnt help,also i can disconnect power cord and try to power up and it does same thing , so i asume its charging the battery, but i push the test button on battery and get none of the 5 led's lighting up! anyone have any ideas whats going on here??