You use your battery tester to decide whether you need to charge, replace or return a battery to service. You need to trust that decision. Your tester may power up and complete each test without showing an error. However, that doesn’t prove its readings are within the manufacturer’s tolerances. Calibration checks your tester against known
Why should you have your tester calibrated? Read More »
A 12v lead-acid battery and a 12v lithium battery may perform the same job, running your vehicles’ auxiliary systems. However, they don’t accept charge in the same way. This means a lead-acid-only charger can be unsafe to use with a lithium battery unless its charging profile happens to meet the battery manufacturer’s specifications. This doesn’t
Why do you need a specific charger to maintain lithium batteries? Read More »
You connect your battery tester and start the battery test. It all seems to be going okay. But then, instead of the usual result, the screen displays a strange message: ‘System noise’. System noise doesn’t mean the battery has failed or that there’s something loud nearby. It means electrical activity is interfering with the test.
What is system noise during a battery test? Read More »
You test a battery and find low cold cranking amps (CCA). You charge it, but the voltage rises too fast. The battery appears full, yet it still won’t support the required load. You may be dealing with sulphation. Sulphation affects flooded lead-acid, enhanced flooded battery (EFB), absorbed glass mat (AGM) and gel batteries. It reduces
What is battery sulphation and can you reverse it? Read More »
