4 String 14.8V/5A 18650 Lithium Battery Protection Board Current Peak 5A Over-Current Protection (BMS)

Li-Ion 14.8V 4S Charge/Discharge Protection Circuit

Specification:

• Over-discharge Voltage Range: 2.3-3.0v ± 0.05v
• Charging Voltage Range: 4.25-4.35v ± 0.05v
• Size: 67 x 16 x 1.0mm
• Maximum Operating Current: 4-5A
• Maximum Instantaneous Current: 6-7A
• Static Current: less than 6uA
• Working Temperature: -40 to+50℃
• Storage Conditions: -40 to+80℃
• Effective Life: more than 30,000 hours
• Internal Resistance: less than 45mΩ
• Short Circuit Protection: protect, restore need to be recharged

Notes:

• Strictly according to the diagram wiring: 0V(B-) 3.7V(B1) 7.4V(B2) 11.1V(B3) 14.8(B+), Do not deliberately short circuit.
• After the wire is connected, it needs to charge the batteries first, then have output.
• When the battery is connected in series with 3 groups, please ensure that the voltage of each battery is the same. If not the same, please fill in each set of batteries and then use them.
• Do not mix the good battery and the battery.
• It will be better the capacity of the battery internal resistance is closer.