RoboJax iMax B3 Pro Lipo 2S 3S Battery Balanced Charger Input voltage: AC 110V-240V Balance charge current: 750mA, Max Charge current 850mA Charges 2S and 3S batteries, charges 2200mAh lipo aprox 3 hours, 5000mAh in aprox 7 hours Auto shuf-off when charge complete Display: Green & Red LED