The Kastar V-Mount battery only about 26.4 Oz, 4' x 2.8' x 3' (102 x 72 x 75.5 mm), it is a compact battery, portable for on-the-go shooting. Easy to pack and portable for use; Battery Type: Li-ion, Battery Voltage: 14.8V, Battery Capacity: 6.8Ah/ 150Wh. With OLED display, it can display battery voltage, capacity and USB output voltage. Kastar V-Mount Charger: Worldwide voltage Input: AC 110-240V 50/60Hz 0.8A DC Output:16.8V-3.0A. Charger indication Green lights for standby, Red is for charging. Which can prevent the overcharge and overdischarge. Fast charge with automatic constant current control prevents battery from overcharging, short circuit, and electronic shock. Build in MCU, automatically stop working when improper input voltage, short circuit or overheat.