Battery Monitors

Solar testers, PV meters, battery monitors and more.

Buying Guides

Everything off, modules asleep, meter in series or a mA clamp on the cable, then pull fuses until the reading drops.

A shunt-based coulomb counter with the right current rating, chemistry settings, and a display or app you will look at every day.

Conductance testers for a quick verdict on starter batteries; discharge testers for the real amp-hours on deep-cycle and lithium packs.

Rested voltage for state of charge, cranking voltage for health, charging voltage for the alternator. Three readings, one meter.