1~5PCS 5S 18V 21V 30A 45A BMS Lithium Battery Charging Protection Board NTC ,Balancing Function, and Temperature Protection
SPECIFICATIONS
Applicable battery cell: Nominal 3.7V lithium-ion battery cell
Application: Computer
Balanced current: 56mA
Brand Name: EGBO
Charging protection current limiting: 30A
Charging voltage: 21V
Choice: yes
Condition: New
Continuous charging current: 20A
Dissipation Power: W
High-concerned chemical: none
Operating Temperature: 0-80℃
Origin: Mainland China
Over-temperature protection: -10℃ to 70℃
Overcharge release voltage: 4.19V ± 0.05V (single path)
Overcharge voltage Single path: 4.25V ± 0.025V
Overdischarge release voltage: 3.0V ± 0.1V (single path)
Overdischarge voltage: 2.8V ± 0.08V (single path)
Package: SMD
Quantity: 1
Supply Voltage: 21v
Type: Module
Upper operating current: 30A
Upper transient current: 45A
is_customized: Yes
semi_Choice: yes





























- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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