![](https://ae01.alicdn.com/kf/Se164e36a1e48494cb443d27fa840682c0.jpg)
The protective plate can be used as four series of polymer lithium battery with nominal voltage of 14.4V, 14.8V and 16.8V, and four series 18650 lithium battery as overcharge, over discharge and short circuit protection. No activation function is needed in the power application of high instantaneous current, and it can avoid the false trigger protection in the inverter application, and it is more convenient to use.
Module parameters:
Module name: 4 series lithium battery protection board
Module nature: polymer lithium battery protection board
Overcharge detection voltage: 4.25 ± 0.025V
Overcharge release voltage: 4.15 ± 0.05V
Overdischarge detection voltage: 2.50 ± 0.08V
Overdischarge 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: when the protection condition is released, it automatically recovers without activation (optional charger activation)
Main functions: overcharge protection, over discharge protection, short circuit protection and overcurrent protection.
Working temperature: - 40~+85 ¡É (please strengthen heat dissipation when the ambient temperature is too high)
Wiring mode: welding output
Module size: 50mm * 22mm * 4mm
Scope of application:
This protection board can be used as a four string polymer lithium battery pack with a nominal voltage of 14.4V, 14.8V, 16.8V, and a four string 18650 lithium battery pack for overcharge, overdischarge, short circuit protection, etc. It is unnecessary to activate the function in power applications with high instantaneous current. In inverter applications, it can avoid false trigger protection and is more convenient to use.
![](https://ae01.alicdn.com/kf/S9ed8022815f747ee8c78f9acac0a9fccT.jpg)
![](https://ae01.alicdn.com/kf/S75b08df590ed4521927be28db6b3cb67y.jpg)
![8](https://ae01.alicdn.com/kf/S6f354a89225b49668bdfad0fa14697b91.jpg)
![9](https://ae01.alicdn.com/kf/Seb5d67b855964c6988bef4345272745dn.jpg)
Application scope:
The protective plate can be used as four series of polymer lithium battery with nominal voltage of 14.4V, 14.8V and 16.8V, and four series 18650 lithium battery as overcharge, over discharge and short circuit protection. No activation function is needed in the power application of high instantaneous current, and it can avoid the false trigger protection in the inverter application, and it is more convenient to use.