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The TYPE-C dual-channel lithium battery charger supports LIR2032/LIR2450/18650 Lithium Cell-2024.

Overview

PCB Hardware Features:

Dual-channel lithium battery charging:
One BAT1 channel has a fixed current of 20mA, suitable for charging LIR2032/ML2032 lithium batteries (do not charge other ordinary batteries; consequences are your own responsibility);
One BAT2 channel offers selectable current of 20mA/100mA, suitable for 18650 or small polymer battery packs;
3D printing of the casing is open; DIY replication or modification is welcome.
Supported 2032 battery models: LIR2032, ML2032. Actual 2032 battery photos:

PCB 3D printing supports 18650; actual product photo

without casing.

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-26 18:53:13

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