【Packing List】2*3850mAh Batteries,1*Battery Charger Hub,1*C-C Cable,1*USB-C Cable 【Battery Specification】It's compatible with DJI Mini 4 Pro&Mini 3&DJI Mini 3 Pro,Capacity:3850mAh,Power:28.41Wh,Nominal Voltage:7.38V,Max Charge Voltage:8.5V 【Expand Your Air Time】Maximum battery life:45 minutes(Mini 4 Pro) / 47 minutes(Mini 3 Pro) / 51 minutes(Mini 3) 【Charge in Sequence】Three batteries are installed,only one charges at a time. The charger first analyzes all batteries and prioritizes the one with the highest remaining charge,initiating its charging while placing others on standby.Upon full charge of the prioritized battery,the system sequentially selects the next highest-charge battery for charging.This cycle repeats until all batteries reach full capacity 【Bi-directional Charge】It functions as a power bank to charge your phone or other devices when batteries are inserted into the charger hub, making it an essential companion for travel, camping, or any outdoor or indoor activity 【Safety Guarantee】The intelligent flight battery plus is built with Over-discharge,over-load,fail-safe circuitry and short-circuit protection.All Rszfnjxry drone battery packs comply with RoHS,PSE and CE security testing standards.Let your drone fly safely. 【Tips】The aircraft will weigh more than 249 g with the intelligent flight battery plus,Please check and strictly comply with local laws and regulations before flight. Rszfnjxry Mini 3 Series Intelligent Flight Battery Plus(2 Packs) with Bi-Directional Charging Hub for DJI Mini 4 Pro/Mini 3/ Mini 3 Pro,3850mAh 47 Mins Flight Time