Testing your car battery is vital to ensure it is working properly. Where can you have it checked, and how often should you ...

Press the load test switch and leave it on for about 10 seconds. If the tester reads 9.5 volts or lower, your battery is bad and needs to be replaced.

It can perform a standard battery health test (shown), cranking, and ripple charging system test. You get both a backlit illuminated 128 x 64 LCD readout and green-yellow-red warning lights.

We hooked up a BT100 Car Battery Tester to one of our Optima Yellow Top test batteries (note: you must connect it directly to the posts), and the display came on immediately. The opening screen ...

Everybody has batteries in many different kinds of devices and sometimes it’s useful to know if the batteries are good of bad. Of course the best way to test it is with a meter but not everybody has a ...

For obvious reasons, the test cannot be repeatedly run with this configuration. Only when confidence is high can the BMS be connected to a real battery stack.