The DALY 4S 20A LFP BMS (Battery Management System) is designed for 4-series LiFePO₄ (LFP) battery packs. It provides overcharge, over-discharge, overcurrent, and short-circuit protection, ensuring safe and reliable operation. Compact and efficient, it is ideal for electric bikes, scooters, solar energy storage, and small-scale energy applications, maintaining battery health and extending cycle life.
Categories:
Battery Management System (BMS)Model: DALY 4S 20A (11d4)
Type: Lithium Iron Phosphate (LiFePO₄) BMS
Series: 4S (4 cells in series)
Max Continuous Current: 20A
Peak/Discharge Current: 40–50A (short duration, depends on model)
Nominal Voltage: 12.8V (4 × 3.2V)
Charge Cut-off Voltage: 14.6V ±0.05V
Discharge Cut-off Voltage: 10V ±0.1V
Balance Function: Passive balancing to maintain cell voltage consistency
Operating Temperature: -20°C to 60°C
Protection Features:
Overcharge protection
Over-discharge protection
Overcurrent protection
Short-circuit protection
Reverse polarity protection
Mounting Type: PCB with wire terminals
Applications:
LFP battery packs (4S)
E-bikes, scooters, and electric mobility
Solar energy storage systems
UPS and backup power systems.
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