TP4056 1A Lipo Battery Charging Board Micro USB
A compact micro‑USB Li‑ion battery charger module using the TP4056 chip. Operates from 4.5–5.5 V, delivers 1 A charge (adjustable via R‑prog resistor), and charges an 18650 cell to 4.2 V with ±1.5% accuracy. Red LED indicates charging; blue LED signals full charge.
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