How To Read Car Battery Charger Meter. Red and Green. The red triangles mean the charging rate and the green triangles tell you how much energy is required to charge the battery fully.
Reading the charging rate. The red triangles mean the charging rate and the green triangles tell you how much energy is required to charge the battery fully. If you have the charger set to ten amps then the needle will move to that point.
Reading the Meter.
Typically you will see two color triangles on the AMP meter. Once the battery clamps are unfastened you can then go ahead and connect the charger to the battery terminals. Disconnect the Battery Clamps. Your multimeter and battery are probably both color coded so the negative terminal and probe will be black while the positive terminal and probe are red.
