3S 4S 5S 50A BMS Board/ 55A 3.7V Lithium Battery Protection Board/3.2V Phosphate/LiFePO4 Battery BMS Board With Balance

Product features: the lithium battery protection board uses a highly integrated intelligent lithium battery protection board integrated , the performance is better than the protective board composed of discrete s. Can complete 3/4/5 string polymer lithium battery, ternary lithium battery, lithium phosphate, lithium cobalt oxide, lithium manganese oxide battery charge and discharge protection, over current, short circuit, over temperature protection and equalization function. It adopts 4 milliultra-low internal resistance MOS tube, which has low internal resistance and high efficiency. It is suitable for battery pack applications in different fields such as inverters, DC motors, power tools, and solar street lights. It is common to the same mouth and mouth, and has strong applicability. The protection board has a heat sink and a supply line. We sell 5S at defualt!!! You can chooseLithium battery or phosphate Bettery Protection Board Notes: 1. Please select the appropriate protection board according to the actual battery type and series connection. The protection board of different series number can not be used universally. The protection board can switch the serial number of the battery by jumper. See the parameter adjustment explanation picture for details. 2. Before the protection board is installed, the battery must be matched well, and the old and new batteries cannot be mixed. 3. Please remove the cable before wiring, and connect all the wires, and then confirm that the wiring is correct before pluing in the cable. When wiring, the control wiring diagram is gradually connected from the negative pole of the battery. For the thick line, please select the appropriate square wire according to the actual load current value. 4. When the working current is too large, please add tin to the tinned part of the front and back of the protection board, or thicken the copper wire to increase the overcurrent capability of the circuit board. Otherwise, the copper skin on the circuit board will be led to the current due to exceive current. Skin or burned. 5, need temperature protection function, you need to add 10K NTC resistor (refer to the description). The factory default is no temperature protection resistor. 6. This protection board has over-current protection secondary delay optional. If the load instantaneous starting current is very large and leads to mis-protection, you can select the secondary over-current protection delay to reduce the occurrence of false protection.

Protection item

Protective of Polymer/Ternary Lithium Manganate Batteries

Protection of lithium phosphate batteries

Single Overcharge Protection Voltage

4.25V ± 0.025V

3.75V ± 0.025V

Single section overcharge relief voltage

4.15V ± 0.05V

3.55V ± 0.05V

Overcharge protection delay

1S ± 200mS

1S ± 200mS

Single Section Over-Amplification Protection Voltage

2.7V ± 0.05V

2.0V ± 0.05V

Single-section Over-discharge Release Voltage

3.0V ± 0.1V

2.7V ± 0.1V

Over-discharge protection delay

1S ± 200mS

1S ± 200mS

Discharge Overcurrent Protection

70A

70A

Delay of discharge overcurrent protection

100mS ± 50mS

100mS ± 50mS

Short circuit protection

Yes

Yes

Short circuit protection delay

250uS ± 50uS

250uS ± 50uS

Short circuit protection recovery mode

Disconnecting Load and Recovering Output Voltage

Disconnecting Load and Recovering Output Voltage

discharge current

50A (Over 20A, please stack the tin-plated part of PCB or add copper wire to increase overflow)

50A (Over 20A, please stack the tin-plated part of PCB or add copper wire to increase overflow)

Charging current

50A (Over 20A, please stack the tin-plated part of PCB or add copper wire to increase overflow )

50A (Over 20A, please stack the tin-plated part of PCB or add copper wire to increase overflow)

Equilibrium function

Yes

Yes

Equilibrium Open Voltage

4.18V ± 0.025V

3.5V ± 0.025V

Balanced current

55mA

55mA

Broken line protection

Yes

Yes

Temperature protection

With (valid for external 10K Euro NTC resistance)

With (valid for external 10K Euro NTC resistance)

Charging cryogenic protection

-7°

-7°

Charging High Temperature Protection

50°

55°

Discharge High Temperature Protection

70°

75°

Module size

60*37*6mm

' About shipping
Shipping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days ar buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

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