Shenzhen BAK Technology Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 10000PCS/Month |
| Delivery Time | 3-4 weeks |
| Packaging Details | Industrial Paper Carton |
| Type | 20S lithium battery protection board |
| Battery Type | Li-ION |
| Over charge detection voltage(Cell) | 4.250V±0.050V |
| Over Discharge Detection Voltage(Cell) | 2.750V±0.050V |
| Over Current Discharge | 135A±20A |
| Over Current Charge | 40A±10A |
| Discharging Temperature | -20℃~70℃ |
| Charge Temperature | -0℃~65℃ |
| Max.Discharge Current | 40A |
| Dimension | 138*88*12 mm |
| Sample | Available |
| Brand Name | BAKTH / Neutral / OEM |
| Model Number | BAKTH-021S100A-0019-01 |
| Certification | IEC62133 |
| Place of Origin | Dongguan China |
View Detail Information
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Product Specification
| Payment Terms | T/T | Supply Ability | 10000PCS/Month |
| Delivery Time | 3-4 weeks | Packaging Details | Industrial Paper Carton |
| Type | 20S lithium battery protection board | Battery Type | Li-ION |
| Over charge detection voltage(Cell) | 4.250V±0.050V | Over Discharge Detection Voltage(Cell) | 2.750V±0.050V |
| Over Current Discharge | 135A±20A | Over Current Charge | 40A±10A |
| Discharging Temperature | -20℃~70℃ | Charge Temperature | -0℃~65℃ |
| Max.Discharge Current | 40A | Dimension | 138*88*12 mm |
| Sample | Available | Brand Name | BAKTH / Neutral / OEM |
| Model Number | BAKTH-021S100A-0019-01 | Certification | IEC62133 |
| Place of Origin | Dongguan China | ||
| High Light | 72V 40A Li-ion BMS board ，EV industrial BMS protection board ，20S BMS board with warranty | ||
20S 72V 40A Li-ion Battery BMS Module Battery Charger Protection Board for EV Industrial Equipment
The BAKTH-021S100A-0019-01 is a high-voltage, industrial-grade protection board exclusively optimized for 20-cell series (20S) lithium battery packs—supporting Li-ion chemistries—with a maximum discharge current of 40A. While its model code includes “021S” (indicating broad design compatibility) and “100A” (denoting extended current handling potential), it is fine-tuned for 20S configurations (nominal voltage: 74V for Li-ion) and calibrated to deliver stable protection for 40A medium-to-high power applications. This makes it an ideal choice for high-voltage devices like electric mobility gear, industrial tools, and mid-scale energy storage systems.
20S-Specific Protection & 40A High-Current Safeguards
Tailored to address the unique risks of 20-cell high-voltage packs, the board delivers multi-layered protection aligned with 20S dynamics and 40A discharge demands:
About Us
Shenzhen BAKTH Technology Co., Ltd. was established in 2002. For 21 years, we've specialized in battery pack assembly and PCM/BMS design and production. Our 5,000-square-meter factory features automated production lines and SMT assembly capabilities.
Certifications
FAQ
What kind of certificate your battery pack owned?
ISO9001, ISO14001, UL, BIS, KC, USTC, CE, CB - our battery packs have reliable quality assurance.
Do you have MOQ?
No limitation - we offer competitive pricing based on order quantity. Sample orders are welcome to test our quality before bulk orders.
What's the warranty? How can we guarantee quality?
Standard warranty is 12 months (negotiable for special products). Our complete production process ensures quality before shipment.
What's the lead time?
Standard products: 3-4 weeks for samples (depending on cell availability), 5-8 weeks for bulk orders (varies by model and quantity).
Can we have our own Logo on the battery pack? Can you accept customized battery?
Yes - our professional R&D team can provide customized solutions according to your requirements.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2002
Total Annual:
15000000-20000000
Employee Number:
100~199
Ecer Certification：
Verified Supplier
Shenzhen BAK Technology Co., Ltd. founded in 2002, with more than 22 years experience in design and production of battery packs and PCB/BMS. BAKTH has its own R&D team, advance production & testing facilities. A fully automatic SMT line was introduced in 2021, further enhanced BAKTH producti... Shenzhen BAK Technology Co., Ltd. founded in 2002, with more than 22 years experience in design and production of battery packs and PCB/BMS. BAKTH has its own R&D team, advance production & testing facilities. A fully automatic SMT line was introduced in 2021, further enhanced BAKTH producti...
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