The GVM NPF 750 Replacement Battery is the battery source fit for all GVM 480LS, 520LS, 520S, 672S video lights, and other lights using this devices. It is the replacement battery for Sony np-f750. This battery backup is easy to carry when out or traveling. It provides extra power for your digital video camera and camcorder. Never run out of battery power when youre just about to capture the perfect moment.CompatibilityRechargeable lithium-ion battery for Sony NP-F750/770 Battery and Charger 4400mAh for Sony NP-F975, NP-F960, NP-F950, NP-F930, NP-F770, NP-F750, NP-F550, DCR, DSR, HDR, FDR, HVR, HVL and LED light. It is compatible with Sony HandyCams, GVM 480s 520ls, 520s, 672s and other LED camera video lights.DurabilityThis 4400mAh rechargeable lithium-ion battery is a high-quality battery with longer battery power. It provides extra power for the flash when you travel. It has no memory effects or other negative effects while charging.Two Batteries, More PowerTwo 4400mAh rechargeable Sony batteries doubly lengthen the use time of your camera. You can charge the batteries simultaneously and independently from any USB Power source.