A4 Air Battery Charger,Smart AA/AAA Battery Charger with Bluetooth Connection Function

【Convenient Operation】Perfectly compatible with phone power adapters, USB ports, portable power banks and car chargers, auto-matching with the USB charging devices output power. Fast charging is possible when combined with a QC adapter. 【Multifunction Charger】Automatic battery type identification, the A4 Air will auto-match the optimal charging algorithm, fully compatible with NiMH, NiCd, Li-lon and LiFePO4 battery. 【Full Color LED Status Indicator】The battery level, type, operation mode and information can be shown clearly by indicators with various color. 【Real Full-time 4 Independent Charging Channels】Compact but not simple, with 4 real independent channels for intelligent current regulation, supports hybrid charging of different types & sizes of batteries. 【Integrated Protection Design】Innovative battery performance detection mechanism, intelligent power allocation, auto-adjust charging parameters. Product description   1, USB C port for power input and PC connection   2, AA