OptiMATE USB Charger & MonitorCombination 2400mA USB charger and 3-LED battery monitor, with vehicle battery protection. Vehicle battery protection: USB output turns off 3 hours after engine stopped or when...
Optimate State of Charge Tester - All 12V Lead-Acid & 12.8V/13.2V LithiumOptimate State of Charge Tester - All 12V Lead-Acid & 12.8V/13.2V Lithium The ideal parts counter battery voltage tester...