4S BMS lithium battery protection board 30A high current four strings 14.8V 16.8V


4 series lithium battery protection board, suitable for nominal voltage 14.4V lithium battery pack, 14.8V lithium battery pack, 16.8V lithium battery pack. 
With automatic activation function, the protection will be automatically canceled after the protection condition is restored, and there is no need for a charger to activate it, which is more convenient to use.


Module parameters: 
Module name: 4 strings of lithium battery protection board 
Module properties: polymer lithium battery protection board
Overcharge detection voltage: 4.25±0.025V
Overcharge release voltage: 4.15±0.05V
Over-discharge detection voltage: 2.50±0.08V
Over-discharge release voltage: 3.00±0.1V
Overcurrent: 20-30A
Working current: 15A (natural heat dissipation 10A, heat sink 15A, maximum instantaneous current 30A)
Release condition: automatic recovery when the protection condition is released, without activation (optional charger activation)


Main functions: overcharge protection, overdischarge protection, short circuit protection, overcurrent protection.
Working temperature: -40~+85 degrees (please strengthen heat dissipation when the ambient temperature is too high)


Wiring method: welding output
Module size: 50mm *22mm*4mm
Module unit weight: grams


Applications:
This protection board can be used as a four-series polymer lithium battery pack with a nominal voltage of 14.4V, 14.8V, and 16.8V, and a four-series 18650 lithium battery pack for overcharge, overdischarge, and short circuit protection. There is no need to activate the function. It is used in power applications with high instantaneous current, and in inverter applications, it can avoid false triggering of protection and is more convenient to use.