7S 20A SLCT Li-ion Battery Management System (BMS)

Overview:
This 7S 20A SLCT Li-ion BMS is designed to protect and manage 7-series lithium-ion battery packs with a continuous discharge current rating of 20 amps. It ensures safety, longevity, and balanced performance of your battery pack.

Key Specifications:

• Battery Configuration: 7 cells in series (7S)

• Nominal Voltage: ~25.9 V (3.7 V per cell × 7)

• Maximum Charge Voltage: 29.4 V (4.2 V per cell max)

• Discharge Cutoff Voltage: 2.8 V per cell (over-discharge protection)

• Continuous Discharge Current: 20 A

• Peak/Overcurrent Protection: Typically triggers at 30–40 A

• Short Circuit Protection: Instant shutoff (microseconds response time)

• Cell Balancing: Passive balancing with 30–80 mA balancing current per cell

• Quiescent (Idle) Current: Ultra-low microampere range for battery efficiency

• Operating Temperature Range: -20°C to +60/65°C

• Physical Dimensions: Approximately 90 × 46 × 8 mm (varies by model)

• Protection Features: Overcharge, over-discharge, overcurrent, short circuit, cell balancing, optional temperature monitoring

Additional Features:

• Selectable Settings (SLCT): Some parameters like overcurrent threshold or balancing can be configured as per application requirements.

• Chemistry Compatibility: Optimized for Lithium-ion (Li-ion) and NMC cells. Voltage and cutoff settings may differ for LiFePO₄ or other chemistries.

• Port Design: Available in single port (combined charge/discharge) or multi-port versions depending on model.

Applications:
Ideal for electric bikes, scooters, power tools, solar energy storage systems, and other portable battery-powered devices requiring reliable Li-ion battery management