How Do I Know If My Battery Charger Is Bad. Learn more about the signs of a bad golf cart battery. If it can let your laptop run that means your laptop adapter is ok you need a new battery if there is no power you should buy a new charger.
You may see that your car lights may turn on easily you can turn on your car radio and other such accessories but still the starter wont work. When you look at the battery of your car you will see it has 5 or 6 cells in it. There could be a condition when one or 2 of them are bad and not others.
Once the AC power is removed from the Battery Tender Plus battery charger the green light will go out and the charger not have any effect on the battery.
To determine the health of your battery To check the health of your battery all you have to do is perform a single command on your Windows Powershell terminal. How to TEST an onboard battery charger. Jan 02 2012 1014 AM. If you do have a voltmeter you can easily check the output of the battery charger.
