2S Li-ion charging module CN3302 with step-up converter (boost), 5V → 8.4V

Module designed for charging two series-connected lithium-ion batteries (for example, 2×18650) with a USB Type-C input.

Product code	01814
Category	BMS Boards
In stock	10+ in stock

43 TL

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§ 02 — Description

The charging module is built on the CN3302 chip and provides safe and efficient charging of Li-ion batteries. Input voltage: DC 3–6V (typically 5V via USB Type-C) Output voltage: 8.4V for 2S batteries Maximum input current: up to 4A Charging current: approx. 2.2A (for the version with 4A input current) Interface: USB Type-C for convenient connection LED indicators: CR (Charge): lit during charging OK: indicates full battery charge or transition to constant voltage mode Applications: Suitable for charging two series-connected 18650 Li-ion or Li-Po batteries, DIY projects, power banks, flashlights and other portable devices.