Battery connector: MX2.0 plug, battery capacity:800mAh, max 850mAh real capacity.
5 in 1 board box Input:5V USB 1A-2A, Output:3.7V-4.2V 500mA, 5 MX2.0 port, It can charge 5 battery at same time.
Charge manual: red indicator is solid when charging, red indicator is off after full charged.
Battery dimensions: 47*25*9mm / 1.85*0.98*0.35 inch, Battery Net weight:19.3grams.
Battery Charge manual: Red light is solid when charging, red light is off after full charged. 3.7V 800mAh Lipo battery suitable for XK K124 RC helicopters.