JLGW BMS LFP 4S 20A Hardware

Parameter Specification

Battery Type LFP (Lithium Iron Phosphate)

Series Configuration 4S (4 Cells in Series)

Nominal Voltage 12.8V

Charge Cut-off Voltage 14.6V

Continuous Discharge Current 20A

Balance Feature Yes – Passive Balancing

Balance Activation Voltage ~3.5V per cell

Overcharge Protection Yes

Over-discharge Protection Yes

Short Circuit Protection Yes

Temperature Protection Yes (Thermistor sensor wire included)

Board Material High-grade FR4 with aluminum heat sink

PCB Color Blue/Green Alloy Shield (Based on lot)

Dimensions Compact with screw mounting slots

Connector Type JST with integrated harness port