Can A Battery Show 12 Volts And Still Be Bad. A fully charged battery will read 12. The simple test would be to take off the connections clean up and reconnect - test again.
When a battery goes from 126 volts to 7 volts in half an hour while sitting on a bench it has a problem. Jump start your bike with a car battery make sure the car is not running if it starts right up your battery is bad. Help please - battery 1 shows 125 V but wont turn engine.
Help please - battery 1 shows 125 V but wont turn engine.
A reading of 1210 volts means that it is halfway. The testers use a device with a resister in to make the battery work to measure the amps under load. Car is dead has no power but battery has 12 volts and connections tight but can be bad still - YouTube. Sitting there not connected to the car and voltage dropping like a rock without even applying a load such as a radio or park lamps.
