JH-8675 Lithium Battery Charger Protection Module (BMS) 1S 2A 3.7V with Nickel Strip

JH-8675 Lithium Battery Charger Protection Module (BMS) 1S 2A 3.7V with Nickel Strip

The JH-8675 1S BMS module is a compact lithium battery protection and charging board designed for single-cell 3.7V lithium-ion batteries such as 18650 and 21700 cells. It combines essential safety protection functions with a simple integration design that includes pre-attached nickel strips for easy battery pack assembly.

This module is widely used in DIY electronics, power banks, flashlights, and small portable devices where safe charging and discharging of a single lithium cell is required. It ensures that the battery operates within safe limits, protecting both the cell and the connected load.

The JH-8675 supports a maximum continuous current of 2A for both charging and discharging, making it suitable for low to medium power applications. It includes built-in protection against overcharging, over-discharging, overcurrent, and short circuits, helping to extend battery life and improve overall system safety.

Features:

• 1S lithium battery protection and charging module

• Supports 3.7V Li-ion/LiPo single cell

• Maximum charge/discharge current: 2A

• Built-in protection: overcharge, over-discharge, overcurrent, short circuit

• MOSFET-based control for efficient switching

• Low standby power consumption

• Pre-attached nickel strips for easy battery welding

• Compact and lightweight PCB design

• Suitable for 18650 and 21700 cells

Specifications:

• Model: JH-8675

• Battery Configuration: 1S (single cell)

• Nominal Voltage: 3.7V

• Full Charge Voltage: ~4.2V

• Overcharge Protection: ~4.25V ± tolerance

• Over-discharge Protection: ~2.5–2.7V

• Continuous Current: 2A (charge & discharge)

• Supported Cells: 18650, 21700

• Connection Pads: B+, B-, P+, P-

• Board Size: ~25mm × 4mm

• Nickel Strip Length: varies by version

Applications:

• DIY 18650 battery packs

• Power banks and portable chargers

• LED flashlights and torches

• Small IoT and embedded devices

• Wireless sensor power systems

• RC toys and hobby electronics

• Backup power for low-power circuits