The CruzPro SBS-30 Second Battery Switch/Charger (Voltage Sensitive Relay)
automatically switches in a second battery to your primary battery whenever
the primary battery voltage is higher than your second battery.
The CruzPro SBS-30 Second Battery Switch/Charger (Voltage Sensitive Relay)
automatically switches in a second battery to your primary battery whenever
the primary battery voltage is higher than your second battery.