3S 12V 25A 18650 Lithium Battery Protection Board

This is 3S 12V 25A 18650 Lithium Battery Protection Board 11.1V 12.6V High Current With Balanced Circuit Over Charge Over-Discharge Over Current And Short Circuit Protection Function. Board charging and discharging are the same port, the board includes the balanced circuit.

When the charge balance, the board will be a bit warm, even after disconnecting the charger, some are still in the balance, will continue to warm for a while until below the equilibrium break threshold.

The protection board cannot be used for iron lithium polymer battery (for other batteries, no matter what material, as long as the overvoltage and put voltage can be used for cutting), electric finish machinery, electric bicycle batteries, car, and motorcycle starter battery protection.

Specifications :

Battery	3 Cell
Overcharge detection voltage (V)	4.25 ± 0.025
Over-discharge detection voltage (V)	2.50 ± 0.08
Over current Protection (A)	40
Working current (A)	25
Quiescent current	less than 30uA
Balance current	about 40 – 50mA
Internal resistance	less than 100m ohm
Operating Temperature (°C)	-40 ~ +50
Storage condition  (°C)	-40 – +80
Instantaneous current	35 – 40A
Effective life	more than 30000 hours
Short-circuit protection	protection, delayed self-recovery
Length (mm)	56.5
Width (mm)	45
Height (mm)	4
Weight (gm)	11

Applicable to the following products (within rated power):

• Electric drill, 775 motors (6A-10A), 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.
• Rated current can’t over 25A, it can’t exceed 50A per 0.5 seconds.

Package includes:

• 1 x 3S 12V 18650 lithium battery protection board.

Precautions:

1. Strictly according to the diagram wiring: 0V(B-)3.7V(B1)7.4V(B2)11.1V(B+),Do not deliberately short circuit.
2. After the line is connected, Need to charge first, then have output.
3. 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.
4. Do not mix the good battery and the battery.
5. The capacity of the battery internal resistance is closer will be better.

Attention:

• Do not mix the good battery and poor battery to use.
• The internal resistance of 3 battery capacity are closer will be better.