- 20%

4S 4A-5A 18650 Li-ion Lithium Battery Protection Board BMS

৳ 200.00 ৳ 250.00

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SKU: 5498 Categories: ,
Note: If the correct welding, testing the output of non-output,
use other ways to activate charging about protection board!


Main IC uses the original “Ricoh” imported components.

Overcharge, over discharge, over current, short circuit protection,
for a variety of capacities in various shapes 3.7V lithium batteries.
Japan protection IC, VISHAY, AOS, IR and other high-quality MOSFET, FR-4
plate low temperature coefficient, design, fine workmanship, testing and comprehensive.
Compact, suitable for many of the requirements of highly integrated,
low-cost applications to meet a wide range of performance requirements

to ensure the absolute safety and reliability of the battery pack.

The protection board device description:
Components for Japan’s S-8254AAG protection chip; Genuine Bandai America’s AO4407 * 2pcs;

protect the chip as well as Ricoh R5431 series.

Lithium battery protection board attributes:
Model: HH-P3-10.8
Dimensions: 48 * 15 * 1.0mm
Charging voltage range: 4.25-4.35v±0.05v
Over-discharge voltage range: 2.3-3.0v ± 0.05v
Working temperature: -40 — + 50 c
Storage conditions: -40– + 80 c
Maximum operating current: 4-5A
The maximum instantaneous current: 6-7A
Quiescent Current: less than 6uA
Resistance: less than 45mΩ
Effective life: more than 50,000 hours
Short circuit protection: protect, need to be recharged recovery
Suitable for: 4packs 18650 lithium battery 14.8V 16.8V

Main functions and features: over charge protection, over-discharge protection,

short circuit protection, overcurrent protection.

The protective plate using Japan’s Ricoh rechargeable lithium iron phosphate battery protection IC

1) high-accuracy voltage detection circuit

2) terminal of the charger using high voltage devices;

3) Built-in three-stage overcurrent detection circuit (overcurrent 1, overcurrent 2, load short circuit);

4) MOS transistor can be controlled by a battery charge and discharge;

5) low standby current consumption.

Function and Notice: 

1, the lithium battery with protection board according to the wiring diagram connection,

when the battery voltage is overcharge and over-discharge voltage between the voltage,

and P +, P- charging 1 second, P + and P- output voltage of the battery voltage.

2, the battery charge function: between P + and P- plus charger to charge the battery,

the battery voltage charge to overcharge detection voltage (4.25 ±0.025V),

the protection circuit to cut off the charging path, to achieve overcharge protection.

3, Battery over-discharge protection: in between the P + and P- connected load to the battery discharge

when the battery voltage drops to over-discharge voltage (2.7  0.05V), the protection circuit,

shut off the discharge path to achieve the over-discharge protection.

4, Short circuit protection: When the P + and P- short circuit protection circuit will act quickly in 5-50uS,

cut off access, short-circuit protection.

5, Overcurrent protection function: When the V- terminal voltage of (0.15 ± 0.02V),

the protection circuit will act quickly in 6.7-13.9ms, cut off access, overcurrent protection


Package Included:


  • 1PCS * 4A-5A PCB BMS Protection Board For 4 Packs 4S 18650 Li-ion lithium Battery Cell
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