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21S 100A Lithium Battery Protection Board High Current BMS for E-bike ESS Customizable
| Place of Origin | Guangdong, China |
|---|---|
| Brand Name | BAKTH/OEM/Neutral |
| Certification | Certified with CE / RoHS / IEC62133 certifications |
| Model Number | BAKTH-021S100A-0019 |
| Minimum Order Quantity | 1-200PCS |
| Price | USD10.00-USD15.00/PCS |
| Packaging Details | Standard Export Packing |
| Delivery Time | 5-8 working days |
| Payment Terms | ,T/T |
| Supply Ability | Daily Delivery Capability: Approx. 1,800 units/day |
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xProduct Details
| Model Number | BAKTH-021S100A-0019 | Battery Type | Li-ion |
|---|---|---|---|
| Series Supported | 21S (customizable From 3S To 24S) | Continuous Discharge Current (A) | 100A |
| Balancing Type | Active Balancing / Passive Balancing (Optional) | Over Charge Detection Voltage(Cell) | 4.250V±0.050V |
| Over Discharge Detection Voltage(Cell) | 2.750V±0.050V | Application | Solar Energy Storage, E-bike, Power Tools, Inverter Packs |
| Dimensions | Length 138 Mm Width 88 Mm Height 12 Mm | Customization Available | Yes |
| Warranty | 12 Months | Certification | CE / RoHS |
| Highlight | 100A Lithium Battery Protection Board,E-bike ESS High Current BMS,Customizable Lithium Battery Protection Board |
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Product Description
BAKTH-021S100A-0019 is a high-performance 21S lithium battery protection board (BMS) designed for high current applications. It offers comprehensive safety protections including overcharge, over-discharge, overcurrent, short circuit, and temperature protection. Ideal for e-bikes, solar energy systems, and energy storage stations. Customization is supported.
Specifications
| Battery Type |
Li-ion |
Continuous Discharge Current | 100A |
| Over charge detection voltage(Cell) | 4.250V±0.050V | Dimensions |
Length 138 mm Width 88 mm Height 12 mm |
| Over Discharge Detection Voltage(Cell) | 2.750V±0.050V | Compliant certification standards | IEC62133 |
| Over Current Discharge | 135A±20A | Type of Protective Board | 20S lithium battery protection board |
|
Over Current Charge
|
40A±10A | Protection | OV, UV, OC, SC, OT, Balance |
| Discharging Temperature | -20~70℃ |
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-0~65℃ |
Key Features
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High current load capacity supports continuous 100A discharge, ideal for high-power applications such as electric bikes and energy storage.
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Built-in protections for over-voltage, under-voltage, short-circuit, over-current, and temperature to ensure safe battery operation.
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Supports active balancing function to extend battery pack life and improve consistency.
- Modular design for easy integration, suitable for various industrial and solar system applications.
Application Scenarios
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Energy Storage Systems (ESS)
- Electric Power Tools
- E-scooters, E-bikes, Electric Motorcycles
- Home Solar Battery Systems
- DIY Custom Li-ion Battery Packs
Competitive Advantages
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Authentic 21S support – full compatibility with 72V systems
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Stable 100A discharge with robust thermal design
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Smart communication protocol integration (CAN, UART)
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Fast customization: wiring, interface, size
- PC software for live monitoring and firmware updates
Warranty & Support
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12-month warranty with lifetime technical support
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100% tested before shipment to ensure safety and reliability
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Dedicated account manager and technical support with 48-hour response
Manufacturing & QC
- Automated SMT + DIP plug-in manufacturing process
- Multi-step electrical tests: short-circuit, current surge, thermal rise
- Each BMS undergoes over 8 hours of full-load burn-in test
- Anti-static packaging and secure logistics to ensure safe delivery
FAQ
Q: What battery types are supported?
A: Supports various lithium chemistries including NCM and LiFePO4. Custom configurations available.
Q: Is customization supported for series count or current?
A: Yes, supports 3S–36S and 10A–300A with optional communication modules like UART, RS485, or CAN.
Q: What warranty and after-sales support are provided?
A: 12-month warranty with lifetime tech support and return/exchange for quality issues.
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