• Shenzhen BAK Technology Co., Ltd.
    Kallista
    I'm going to keep this sweet & short! I have never experienced such excellent customer service with a out of country supplier. This company has gone far and beyond to meet the needs of their customers. Their response time with all my concerns were addressed immediately 100%within 1-24 hours and the shipping time was EXCELLENT!
Contact Person : Dong
Phone Number : +86 13828713564
Whatsapp : +8613828713564

BAKTH-015S040A-0004-01 14S 52V 40A Li-ion Battery Protection Board for E-bike Industrial Equipment

Place of Origin Dongguan China
Brand Name BAKTH / Neutral / OEM
Certification IEC62133
Model Number BAKTH-013S060A-0026-01
Minimum Order Quantity 2 Piece
Price USD 40.43-29.23/PC
Packaging Details Industrial Paper Carton
Delivery Time 3-4 weeks
Payment Terms T/T
Supply Ability 10000PCS/Month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

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Product Details
Type BAKTH-015S040A-0004-01 Battery Type Li-ION
Compatible Interface SMBUS Over Charge Detection Voltage(Cell) 4.2500V±0.050V
Over Discharge Detection Voltage(Cell) 2.700V±0.050V Over Current Discharge 80A±5A Adjustable
Over Current Charge 60A±5A Adjustable Discharging Temperature -20℃~65℃ Adjustable
Charge Temperature -0℃~50℃ Adjustable Dimension 156*70*12 Mm
Max.Discharge Current 40A Sample Available
Highlight

14S 52V Li-ion BMS board

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E-bike battery protection board

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40A BMS for industrial equipment

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Product Description

BAKTH-015S040A-0004-01 14S 52V 40A Li-ion Battery Protection Board for E-bike Industrial Equipment

BAKTH-015S040A-0004-01 14S 52V 40A Li-ion Battery Protection Board for E-bike Industrial Equipment 0

The BAKTH-015S040A-0004-01 is a high-performance protection board tailored exclusively for 14-cell series (14S) lithium battery packs—covering Li-ion, Li-polymer, and LiFePO4 chemistries—with a maximum discharge current of 40A. While its model code includes “015S” (indicating broad design compatibility), it is optimized for 14S configurations (nominal voltage: 51.8V for Li-ion, 44.8V for LiFePO4), and the “040A” designation aligns with its 40A high-current handling capability. This makes it an ideal choice for medium-to-high power devices requiring stable high-voltage protection, such as electric mobility gear, industrial tools, and mid-scale energy storage systems.

14S-Specific Protection & 40A High-Current Safeguards

Calibrated to address the unique risks of 14-cell high-voltage packs, the board delivers targeted protection optimized for 14S dynamics and 40A discharge demands:

Overcharge Protection: Triggers at 4.25V (Li-ion) per cell, instantly cutting charging current to prevent thermal runaway—critical for 14S packs where cumulative voltage (up to 59.5V fully charged for Li-ion) amplifies overcharge hazards.

Undervoltage Protection: Shuts down discharge at 2.5V (Li-ion) per cell, avoiding irreversible capacity loss from “weak cells” that can disable the entire 14S system, especially during 40A high-load operation.

40A Overcurrent & Short-Circuit Protection: Blocks currents exceeding 40A (max discharge) or 120A (peak surge), shielding the 14S pack and connected devices (e.g., electric scooters, heavy-duty drills) from burnout during startup or sustained high-power use.

14-Cell Active Balancing: Automatically equalizes voltage across all 14 cells during charging, eliminating uneven charge distribution—a major challenge in high-cell-count packs. This extends the 14S pack’s lifespan by up to 40% vs. unbalanced systems and maintains consistent 40A discharge performance.

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.

BAKTH-015S040A-0004-01 14S 52V 40A Li-ion Battery Protection Board for E-bike Industrial Equipment 1

Certifications

BAKTH-015S040A-0004-01 14S 52V 40A Li-ion Battery Protection Board for E-bike Industrial Equipment 2

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.