The SmallRig VB155 mini V Mount Battery 3581 is about 70% the size of a standard V mount battery thanks to a highly integrated design that takes up less space, making it lighter and more portable. Highly integrated (fast charging protocol chip + MCU + boost control) BMS chip supports a wide range of popular fast charging protocols (PD / QC / SCP / PPS / Apple 2.4A, etc.), bi-directional 65W (max) USB-C PD fast charging as well as adaptive voltage boost/adaptive current control, etc. In addition, its customized intelligent BMS system ensures faster and safer charging by providing multiple protections against over-current / short-circuit / over-heat / over-voltage, etc. against. It also includes interfaces such as USB-A / USB-C / D-Tap / DC 8V / DC 12V / V-holder camera, camcorder, monitor, wireless video transmitter, video light, mobile phone, laptop, etc. for efficient charging without the use of a V-lock plate for conversion. The BMS chip has a 16-bit ADC/power meter algorithm, as well as an MCU, and includes an OLED digital display so you can keep track of your battery's health. The built-in premium high-power battery is stable (no inflated capacity) and meets MSDS / UN38.3 / IEC62133 / UL2054 / UL62368 and other internationally recognized standards, allowing you to capture every moment without burden.