3 string 12V18650 lithium battery protection board.
25A over-current over-discharge protection.
Protect your lithium battery.
Excellent performance and durability.
Strictly according to the diagram wiring: 0V(B-)3.7V(B1)7.4V(B2)11.1V(B+), Do not deliberately short circuit.
After the line is connected, Need to charge first, then have output.
When the battery is connected in series with 3 groups, Please ensure that the voltage of each battery is the same. If not same, please fill in each set of batteries and then use.
Do not mix the good battery and the bad battery.
The capacity of the battery internal resistance is closer will be better.

Note:
This protection board can not be used for lithium iron phosphate battery, xenon lamp, hand drill battery pack, can not be used for electric fish battery pack, electric bicycle battery pack, baby car battery, 775 (4A) or above motor, 1W fisheye LED lamp, Customers who use the above combination purchases should pay attention!

Specifications:

• Size: about 56mm*45mm*1.2mm
  
• Over voltage range: 4.25-4.35v±0.05v
  
• Over discharge voltage range: 2.3-3.0v±0.05v
  
• Maximum operating current: 0-25A
  
• Maximum transient current: 34-40A
  
• Quiescent current: less than 30uA
  
• Internal resistance: less than 100mΩ
  
• Working temperature: -40---+50°
  
• Storage condition: -40-- +80°
  
• Effective life: more than30000h
  
• Short circuit protection: Yes, delayed self recovery