3S 12V 25A 18650 Lithium Battery Protection Board

Ensure the safety and efficiency of your 3-cell lithium battery pack with our 3S 12V 25A Lithium Battery Protection Board. Designed for high current applications, this board provides overcharge, over-discharge, overcurrent, and short circuit protection functions, making it ideal for a variety of products including electric drills, small power inverters, LED lamps, and more.

  Key Features:  

• High Current Output: Supports continuous discharge current up to 25A
• Balanced Circuit: Includes a balanced circuit for optimal battery performance
• Protection Functions: Offers overcharge, over-discharge, overcurrent, and short circuit protection
• Easy to Install: Board charging and discharging use the same port for convenience

  Specifications:  

• Battery: 3 Cell
• Overcharge Detection Voltage: 4.25 ± 0.025V
• Over-discharge Detection Voltage: 2.50 ± 0.08V
• Overcurrent Protection: 40A
• Working Current: 25A
• Quiescent Current: < 30uA
• Balance Current: ~40-50mA
• Internal Resistance: < 100mΩ
• Operating Temperature: -40 ~ +50°C
• Storage Condition: -40 ~ +80°C
• Instantaneous Current: 35-40A
• Effective Life: > 30000 hours
• Short-circuit Protection: Yes, with delayed self-recovery
• Dimensions: 56.5mm x 45mm x 4mm
• Weight: 11g

  Applicable Products:  

• Electric drill
• Small power inverter
• Small power vacuum massager battery
• LED lamp
• 12V standby power electronic products
• 12V120W car washing pump
• Battery, solar street lamp monitoring standby power supply, and other products

  Package Includes:  

• 1 x 3S 12V 18650 Lithium Battery Protection Board

  Precautions:  

• Follow diagram wiring: 0V(B-)3.7V(B1)7.4V(B2)11.1V(B+), do not short circuit deliberately
• Charge first, then use output after connecting the line
• Ensure voltage of each battery is the same when connected in series
• Do not mix good and poor batteries
• Closer capacity and internal resistance among batteries are better for performance

  Attention:  

• Do not mix good and poor batteries
• Closer capacity and internal resistance among batteries are better