PCM-S4A4B 12.8V4A LFP Round

Protection Circuit Module (PCM) for LiFePO4 Battery Pack LFP26650 4 Series Connection 12.8V 4.0A


Protection Circuit Board Specifications  For LiFePO4 Battery  Pack  * Optional 4S Li-ion/Li-po
Model: PCM-S4A4 LFP 12.8V4A LFP26650
No. Testing   Items  Data
1 Voltage Charging voltage Li-ion: 16.8V CC/CV (4.2V/cell)
LiFePO4: 14.4V CC/CV (3.60V/cell)
Balance voltage for single cell N/A
2 Current Balance current for single cell N/A
Current consumption for single cell ≤50μA
Maximal continuous Charging current 4A
Maximal continuous discharging current 4A
3 Over charge Protection
(single cell)
Over charge detection voltage Li-ion: 4.325±0.025V
LiFePO4: 3.900±0.025V
Over charge detection delay time 0.3S-2S
Over charge release voltage Li-ion: 4.075±0.025V
LiFePO4: 3.800±0.050V
4 Over discharge protection
(single cell)
Over discharge detection voltage 2.00±0.080V
Over discharge detection delay time 200-700mS
Over discharge release voltage Li-ion: 2.9±0.05V
LiFePO4: 2.50V±0.100V
5 Over current protection Over current detection voltage 0.15V±0.025V
Over current detection current 10±2A
Detection delay time 20ms-70ms
Release condition Cut load
6 Short protection Detection condition Exterior short circuit
Detection delay time 200-800us
Release condition Cut load
7 Resistance Protection  circuitry(B- TO P-) ≤50mΩ
8 Temperature Operating Temperature Range -40~+85℃
Storage Temperature Range -40~+125℃
9 Weight 0.2Oz (5.7g)
10 Dimenstion Dia x T 26mm(1.02″) x 3 mm (0.12″)

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