1S 18650 Protection Board – DW01A 2A

The 1S 18650 Battery Protection Board is a compact battery management module designed to provide essential protection for a single-cell 3.7V lithium-ion battery. Based on the DW01A protection IC and 8205A MOSFET, it safeguards the battery against overcharge, over-discharge, overcurrent, and short-circuit conditions. Its ultra-compact design allows easy integration into battery packs, portable electronics, and custom rechargeable devices while maintaining safe and reliable battery operation.

Features

DW01A battery protection controller

Dual 8205A MOSFET protection design

Single-cell 3.7V Li-ion battery support

Overcharge protection function

Over-discharge protection function

Overcurrent protection function

Short-circuit protection function

Automatic recovery after fault removal

Low standby power consumption

Compact miniature PCB design

Suitable for 18650 battery packs

Stable battery protection performance

Easy solder-pad battery connections

Supports charging and discharging protection

Ideal for portable electronic devices

Specification

Battery Type: Single-Cell 3.7V Li-Ion Battery

Protection IC: DW01A

MOSFET IC: 8205A Dual MOSFET

Charging Voltage: 4.2V

Overcharge Detection Voltage: 4.25V ± 0.05V

Overcharge Release Voltage: 4.23V ± 0.05V

Over-Discharge Detection Voltage: 2.45V ± 0.1V

Maximum Continuous Current: 2A

Overcurrent Detection Current: 2.5A

Protection Functions: Overcharge Protection

Protection Functions: Over-Discharge Protection

Protection Functions: Overcurrent Protection

Protection Functions: Short-Circuit Protection

Battery Configuration: 1S (Single Cell)

Board Dimensions: 30mm × 3.7mm × 2.2mm

Mounting Method: Solder Pad Connections

Tutorials

Protect your 18650 battery by this