Small and lightweight, Lithium-ion batteries can be charged or discharged at any time without developing memory effect. (7.4V, 2000mAh). Handy USB port for charging, no separate charger necessary, just plug into USB port. Micro USB cable included. Not coded for Sony video cameras. The GPB Sony NP-F550 USB-Chargeable Battery for Video Lights is recommended for powering all the Godox lights that allow for v-mount/ v-lock battery power.