1. PCM basic specifications
Item
Project
Design
Design
Value
Preparation
Note
1.1 Dimensions (length × width × height)
85mm*70mm*12mm
Wire harness not included
1.2 Protection board heat dissipation method
Aluminum oxide heat sink
1.3 Whether the charge and discharge circuits are separated
Yes
1.4 Maximum continuous operating current
20A
1.5 Peak operating current
40A
Continuous 1 minute
1.6 Normal working conduction internal resistance
≤6mΩ
Between B- and P- on PCM
1.7 Battery pack two-level voltage Protection
None
1.8 Battery pack balance management method
Resistance balancing
1.9 Charging overcurrent protection recovery method
None
1.10 Discharge overcurrent protection recovery method
Disconnect the load
Automatic recovery
1.11 Charger reverse connection protection
None
1.12 Load surge absorption protection
None
1.13 Load back electromotive force absorption protection
None
1.14 static power consumption
lt; 55uA
During normal operation
lt; 30uA
After sleep
1.15 Working temperature
-40℃～85℃
1.16 Storage temperature
-40℃～ 125℃
2. Basic protection parameters
Item
Item
Design value
Note
Note
2.1 Overcharge protection detection voltage (single cell)
3.80±0.025V
2.2 Overcharge protection delay time
1S
2.3 Overcharge protection recovery voltage (single cell)
3.60 ±0.050V
2.4 Over-discharge protection detection voltage (single cell)
2.20±0.080V
2.5 Over-discharge protection delay time
100mS
2.6 Over-discharge protection recovery voltage (single cell)
2.50±0.100 V
2.7 Charging over-current protection current
None
Maximum charging current 10A
2.8 Discharge over-current Current protection current
70A±8A
*1
2.9 Discharge overcurrent protection delay time
20mS
2.10 Discharge short-circuit protection delay time
300uS
Typical value
2.11 Charge and discharge high temperature protection temperature
None
Reserved temperature switch interface
2.12 charge and discharge high temperature protection recovery temperature
None
2.13 0V battery charging function
Yes
3. Balance management parameters
item
item
design Value
Preparation
Note
3.1 Balanced starting voltage
3.65V±0.025V
Resistor balancing
3.2 Balanced cut-off voltage
<p>3.55V±0.050V
Resistance balancing
3.3 Balancing current
55mA±5mA
Resistance balancing
There are different models of protective boards
This is just one of them
Hope it is useful to you