1S 3.7V Li-ion Battery Protection Module (DW01A + 8205A) – Overcharge, Overdischarge & Short-Circuit Safety Circuit
Description:
Miniature protection board for single-cell (1S) lithium-ion or lithium-polymer batteries. Integrates DW01A controller and 8205A dual MOSFET for precise overcharge, overdischarge, and short-circuit protection. Perfect for power banks, Bluetooth devices, and small DIY battery projects.
Supports: 1S (3.7V nominal, 4.2V full) Li-ion/Li-Po cells
Overcharge cutoff: ~4.25V
Overdischarge cutoff: ~2.5V
Max Continuous Current: 2–3A
Auto recovery after protection trip
Terminals: B+, B-, P+, P-
Board size: ~18×10mm
