The TP4056 Type‑C Charging Board is a compact, efficient module designed for charging single-cell 3.7 V lithium-ion or lithium-polymer batteries at up to 1 A. Equipped with a modern USB Type‑C input, it simplifies connectivity and supports stable input from 4.5 to 5.5 V—commonly from USB adapters or portable power sources. The board integrates the proven TP4056 charging IC for precise constant current/constant voltage (CC/CV) charging, terminating at 4.2 V ±1%. Enhanced with a DW01 battery protection IC, it adds vital safety features including overcharge cutoff, under-voltage cutoff (around 2.4–2.5 V), and over-current/short circuit protection to safeguard both the battery and module. During charge cycles, a red LED indicates active charging, while a green LED signals full charge. The compact design (about 25 × 19 × 6–10 mm, weighing just a few grams) makes it ideal for portable and embedded applications. The module also supports auto-recharge when battery voltage falls and advises against charging above 1C. A 15-day manufacturer warranty covers sealed units for manufacturing defects, offering peace of mind in DIY, power-bank, and battery-management projects.