This Lithium ion battery protection PCB protect single Lithium ion batteries. 8A continous current
Lithium ion protection is necessary, as Lithium ion will explode when they are shorted circuit or overcharged, and damaged when they are over discharged.
After Lithium ion is connected to the PCB, the board protect individual batteries from:
1. Over charging - Disconnect circuit when either battery is over 4.35V
2. Over discharging - Disconnect circuit when either battery is lower than 2.7V
3. Short curcuit protection - Disconnect when short circuit is detected
B+ - TO +ve of the 1st battery
B1 - TO -ve of the 1st battery and +ve of the 2nd battery
B2 - TO -ve of the 2nd battery and +ve of the 3rd battery
B3 - NO connection
B- - TO -ve of the 3rd battery
P+ - TO +ve of load/input
P- - TO -ve of load/input
Protection IC: Seiko S-8254AAK Datasheet
Protection MOSFET: 4x AO4407A
Dimension 50mmx16mmx2mm (LxWxH)
Supported Battery type three cell 4.2V Lithium ion battery
Overcharged voltage protection 4.35V
Overdischarged voltage protection 2.7V
Maximum Continous Curent 8A
Maximum Peak Curent 15A, <20ms
Output Short circuit protection YES
Internal resistance <8mΩ
Operating temperature -20 to 70 C
1X Lithium Battery protection
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