Kastar Magic NP-FW50D Battery can be charged w/ USB-C with 5Volt 2A adapter. The next evolution of USB technology: a USB battery, the first of it's kind that provides high-speed charging from the wall and on-the-go! Convenience at your finger tips! Battery LED indicate: Red light for charging; Green light for full-charge. Specification: Battery Type: Lithium-ion; Battery Voltage: 7.2V; Battery Capacity: 1650mAh. Safe to Use: Kastar lithium-ion battery cells meets UL1642 & CE safety standards to ensure that your battery pack will be safe to use as a replacement for your unit. Comes with built-in over-charge, over-discharge, over-voltage, over-current, and over-heating protection circuit. Save Money & Time: Do not spend too much time and money on frequent brands with low quality replacement. With our longer run time & protection features, your cycle life will also be improved because you get quality product for your camera.