SmallRig 3579 V-Mount Battery Mini VB50 Its customized intelligent BMS system ensures faster and safer charging by providing multiple protections against overcurrent/short circuit/overheating/overvoltage etc. Made of PC heat-resistant and fire-safe material, provides safe protection during charging.Also comes with connectors such as USB-A / USB-C / D-tap / DC 8V / DC 12V / V Mount for efficient charging / powering of camera / camcorder / monitor / wireless video transmitter / video light / mobile phone / laptop etc. without the need to convert the V-mount plate! The BMS chip features a 16-bit ADC / power meter algorithm together with MCU and OLED digital display to monitor the battery status all the time. Built-in 3500mAh high capacity lithium battery provides high charge and discharge rate, excellent cycle performance and efficient power while adding less weight to the camera mount.Built-in high quality high performance battery (no inflated capacity), which are rechargeable and stable, meet MSDS/UN38.3/IEC62133/UL2054/UL62368 and other internationally recognized standards, allowing you to capture every moment without burden! Capacity 14.8V 3.4Ah 50WhNominal power of discharge: 45WV Mount / D-TAP input 5A (Max)V Mount / D-TAP output 14.8V / 12A (Max)USB-A outputUSB-C input/output Max input/output 45WDC1 output 8V / Max3ADC2 output 12V / Max3Valternative charging method 16.8V D-TAP charger, USB-C charger, like GaN charger with PD fast charging technology (up to 45W). Note! 1. Keep it clean, in a dry area and away from corrosive substances to reduce the risk of short circuit.2. Check its battery life regularly if you need it anytime anywhere.3. If the battery is left unused for a long time, charge it to about 70% every three months and put it in a dry and ventilated environment for longer life.4. Operating temperature: -10 ? 45 ? (14?113?).5. It is normal for the battery to warm up slightly during charging or use.6. When using the D-TAP connector, separate the positive and negative terminals and do not invert the battery.7.It is normal for the battery to lose some power during long-term storage because it is self-consuming.8. Do not exceed its rated capacity when connecting power to other devices.9. Keep it away from water or fire during use.10. Avoid dropping or crushing it. 1x VB50 Mini V-Mount Battery1x User Manual.