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Smart Electronics 4S 30A High Current Li-ion Lithium Battery 18650 Charger Protection Board 14.4V 14.8V 16.8V BMS

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Smart Electronics 4S 30A High Current Li-ion Lithium Battery 18650 Charger Protection Board 14.4V 14.8V 16.8V BMS

4S 30A High Current Li-ion Lithium Battery 18650 Charger Protection Board 14.4V 14.8V 16.8V BMS

1. Module name: 4 series lithium battery protection board
2. Modular nature: polymer lithium battery protection board
3. Overcharge detection voltage: 4.25 ± 0.025V
4. Overcharge release voltage: 4.15 ± 0.05V
5. Overdischarge detection voltage: 2.50 ± 0.08V
6. Over-discharge termination voltage: 3 ± 0.1V
7. Overcurrent: 20-30A
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1. Module name: 4 series lithium battery protection board
2. Modular nature: polymer lithium battery protection board
3. Overcharge detection voltage: 4.25 ± 0.025V
4. Overcharge release voltage: 4.15 ± 0.05V
5. Overdischarge detection voltage: 2.50 ± 0.08V
6. Over-discharge termination voltage: 3 ± 0.1V
7. Overcurrent: 20-30A
8. Working current 15A (natural cooling: 10A, plus heat sink 15A, maximum instantaneous current 30A)
9. Termination condition: release the protection condition and then automatically recover without activation
(optional charger activation)
10. Main functions: overcharge protection function, overdischarge protection, short circuit protection,
overcurrent protection.
11. Working temperature: -40 ~ + 85 degrees (high temperature environment, please strengthen radiation)
Connection: welding output
13. Module size: 50mm * 22mm * 4mm

application:
The protection board can be used as four series lithium polymer battery packs with nominal voltages
of 14.4V, 14.8V, and 16.8V, and four strings of 18650 lithium batteries as overcharge and overdischarge,
short circuit protection. High instantaneous current without activation function in power applications,
and avoiding false trigger protection in inverter applications, so it is more convenient to use.

Note: There is no part design on the back, which can be connected to the heat sink to ensure
long-time high-current operation.


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