1S 2.5A 3.7V Battery Management System (BMS) Balance Module

The BMS Balance Module is specifically engineered to safeguard and control single-cell lithium batteries. It is equipped with overcharge, overdischarge, overcurrent, and short circuit protection mechanisms, thereby enhancing the safety and extending the lifespan of your battery.

Technical Specifications

• Charging Voltage: DC 4.2-5V CC/CV
• Single Battery Consumption Current: ≤ 6µA
• Continuous Discharging Current: 2.7A
• Overcharging Detection Voltage: 4.2V ± 0.025V
• Overcharging Detection Delay Time: 150-500ms
• Overcharging Restore Voltage: 4.0V ± 0.025V
• Overdischarging Detection Voltage: 2.75V ± 0.1V
• Overdischarging Detection Delay Time: 50-150ms
• Overdischarging Restore Voltage: 2.9V ± 0.10V
• Overcurrent Detection Voltage: 150 ± 30mV
• Overcurrent Detection Current: 4.5 ± 0.5A
• Overcurrent Detection Delay Time: 5-15ms
• Overcurrent Restore Type: Automatic Restore
• Short Circuit Detection State: External Short Circuit
• Short Circuit Detection Delay Time: ≤ 50µs
• Short Circuit Restore State: Automatic Restore
• Internal Resistance: MOSFET ≤ 40mΩ
• Operating Temperature Range: -40°C to +50°C
• Storage Temperature Range: -40°C to +90°C
• Size: 28mm x 3.8mm x 1.2mm

Key Features

• High voltage withstand on charger terminal.
• Internal 3-phase overcurrent detection circuit (Overcurrent 1, Overcurrent 2, Load short circuit).
• MOSFET controls battery charging and discharging.
• Wide operating temperature range.
• Low consumption current.

Soldering Point Introduction

• B+: Connect with power positive.
• B-: Connect with power negative.
• P+: Connect with charging/discharging port positive (common for charging and discharging).
• P-: Connect with charging/discharging port negative (common for charging and discharging).