3S Lithium Battery Charging Protection Board - 11.1V, 25A

3S Lithium Battery Charging Protection Board is a Battery Management System for Li-ion and Li-Po 3S battery packs. It is designed for packs with an 11.1V nominal voltage and supports a maximum continuous discharge current of 25A. The board provides battery protection and cell balancing for series-connected lithium cells. It includes overcharge protection, over-discharge protection, short-circuit protection, and balanced charging. Use it with the correct 3S battery wiring and charging setup to manage the battery pack safely.

Features of 3S Lithium Battery Charging Protection Board - 11.1V, 25A

• 3S Li-ion and Li-Po support
• 11.1V nominal voltage
• 25A maximum continuous discharge current
• Overcharge protection
• Over-discharge protection
• Short-circuit protection
• Balanced charging

Specifications of 3S Lithium Battery Charging Protection Board - 11.1V, 25A

• Nominal voltage: 11.1V
• Maximum continuous discharge current: 25A
• Battery type: 3S Li-ion or Li-Po battery packs
• Protection features: overcharge protection, over-discharge protection, short-circuit protection, balanced charging
• Balancing current: 45mA per cell
• Operating temperature: -20°C to +60°C
• Maximum operating current: 20-25A
• Maximum instantaneous current: 35-40A
• Over charge voltage range: 4.25-4.35V±0.05V
• Over discharge voltage range: 2.3-3.0V±0.05V
• Quiescent current: less than 30uA
• Internal resistance: less than 100mΩ
• Balance current: 45 mA
• Charging voltage: 12.6V-13V
• Working temperature: -40 - +50°C
• Storage conditions: -40 - +80°C
• Short-circuit protection: protection, delay self-recovery
• Size: 56*45*4.0mm

How to Use 3S Lithium Battery Charging Protection Board - 11.1V, 25A

1. Connect the power source to the voltage buck module.
2. Adjust the output voltage with a multimeter.
3. Set the output current with a multimeter and connect it to the module output pads.
4. Connect the battery terminals to B-, B1, B2, and B+ in the correct order.
5. Use P+ and P- as the input and output pads for charging and battery use.

More Info

• This module does not perform charging operations.
• A separate module is required for charging.
• The lithium battery protection board is not included the welding tabs.
• BMS activate method: use 12.6V Li-ion charger to charge it.
• Do not mix good batteries and poor batteries.
• Ensure the voltage of each series battery is the same before use.
• Strictly follow the wiring diagram: 0V(B), 3.7V(B1), 7.4V(B2), 11.1V(B+).