3S 12V 18650 Lithium Battery Protection Board 11.1V 12.6V with Balanced 25A Overcurrent Charging and discharging ProtectionItem NO.: 3S25A

3S 12V18650 Lithium Battery Protection Board

The Described Power Range is Applicable to the Following Products:

Massager battery pack, LED light backup power supply, 12V electronic products, solar street light battery pack, monitoring backup power supply, and other products.

Attention: For products with a discharge current above 3A, the battery discharge rate should be above 3C.

Formula for multiplying rate calculation: For a 1C multiplying rate battery, the capacity of 2000 is equal to 2AH * 1=2A working current.

A 3C rate battery with a capacity of 2000 is equal to 2AH * 3=6A working current.

If the battery heats up during use, it means that the battery rate is not suitable. This situation must not be used for a long time, as the battery will quickly damage.

Attention 1: Strictly follow the diagram to wire 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B+), and do not intentionally short circuit!

Note 2: After connecting the wires, it is necessary to charge first before there is an output.

Note 3: When connecting three sets of batteries in series, please ensure that the voltage of each set of batteries is the same. If different, please fully charge each set of batteries separately before using them in series. During the discharge test, the battery with a fast voltage drop is considered a poor battery.

For some customers with poor electronic foundation, please note: never mix good batteries with poor batteries! The closer the capacity/internal resistance of 3 sets of batteries, the better! (2 good batteries+1 poor battery usage effect=3 poor battery usage effect).

The Properties of the Lithium Battery Protection Board:

Model: HX-3S-FL25A-A

Overcharge voltage range: 4.25-4.35v ± 0.05v

Size: 56 * 45 * 4.0mm

Overdischarge voltage range: 2.3-3.0v ± 0.05v

Working current: 0-25A

Working temperature: -40--+50 ℃

Instantaneous current: 35-40A

Storage conditions: -40--+80 ℃

Quiescent current: less than 30uA

Effective life: greater than 30000 hours

Internal resistance: less than 100m Ω

Short circuit protection: Protectable, delayed self recovery.