1 Compatibility: The battery accessory is fully compatible with the for X4 camera. Replacement batteries can operate in temperatures as low as 0 C to -20 C (32 F to -4 F). 2 Longer Life: The for X4 battery has approximately 27 percent more capacity and 67 percent more runtime than the previous version. 2500mAh high capacity for X4 battery allows shooting at 5.7K 30fps for 120 minutes to 135 minutes. 3 Efficient and Fast Charging: The for X4 battery supports PD fast charging, which can charge the battery to 80 percent in about 26 minutes and 100 percent in about 43 minutes. 4 Safety Guard: The professional for X4 camera battery has built in guard circuitry for overcharge guard, overcurrent guard and overdischarge guard. 5 Dual Battery Charger: This battery charger is compatible with the for X4 camera and features 2 separate charger channels for ultra fast charging and can also be used as a portable charger for external devices.Item Type: Action Camera Replacement Battery
Material: Plastic, Electronics
Replacement Battery:
Applicable Models: for X4
Rated Capacity: 2500mah
Rated Voltage: 3.85V
Charging Voltage: 4.4V
Battery Type: 2500mah Lithium Batteryx2 (Replacement Battery with Pure Battery Shipment)
Charger:
Applicable Models: for X4
Input Voltage: Type C 5V 3A
Output Voltage: 4.4V,1.5A (Maximum)

What's in the box
2x Replacement Battery
2x Battery Carrying Case
1x Dual Battery Charging Case
1x Charging Case Power Cable
1x Charging Case Manual