The ProShot Battery Module from PGYtech is a power-expansion module that seamlessly integrates into the PGYtech ProShot Quick Release Grip by plugging into the Quick Release Hand Grip. It features a built-in 5000mAh high-capacity lithium-ion battery and is suitable for carry-on luggage, so you can carry it and travel with confidence. The built-in BMS (Battery Management System) monitors and protects against overcharging, over-discharging, over-voltage, over-current, short circuits, and overheating, ensuring the safety of your smartphone rig.