Type-C DIY DC 3-6V boost charging BMS 2S 8.4V 3S 12.6V 4S 16.8V 1A 2A 4A 18650 Lithium Battery Charger Board USB C Step-up Boost Module For Li-Po Polymer Power Bank DC 3-6V boost module 2S/3S/4S 1-4A lithium polymer lithium-ion battery charging module

Switching frequency up to 1MHz. Quasi CV mode compensates for battery internal resistance, voltage loss, and wiring resistance in batteries. Automatic Recharge. Protection voltage below input and battery short circuit. Good adaptability to input power supply, limited driving capability. Battery overvoltage protection. PDA, MP3 player, MP4 player. Digital camera. Bluetooth application. recreational machines. notebook. Lithium battery 18650. mobile phone. Solar charging. hi-fi equipment. Portable devices. POS electric fan. TYPE-C charging device

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