OptiMate Battery Charger and Maintainer
Charge and maintain your battery without AC power
Powered from a DC source or another 12 V battery to remotely save, recharge and maintain stored vehicles 12 V battery
Great option for emergency vehicle-to-vehicle and off-grid charging
Built-in protection prevents deep discharge of the source battery
IP54 weatherproof, rated for use down to -40 C / -40 F
