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  • 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

Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function

  • Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function
  • Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function
  • Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function
  • Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function
  • Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function
Place of Origin Dongguan China
Brand Name BAKTH / Neutral / OEM
Certification IEC62133
Model Number ITL0040150008-01
Minimum Order Quantity 2 Piece
Price USD 10-15 /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 4S Lithium Battery Protection Board Compatible Interface SMBUS
Battery Type Li-ION Over Charge Detection Voltage(Cell) 4.250V±0.050V Adjustable
Over Discharge Detection Voltage(Cell) 2.500V±0.050V Adjustable Over Current Discharge 20.0A±1.0A Adjustable
Over Current Charge 10.0A±0.5A Adjustable Max.Discharge Current 15A
Discharging Temperature -26~65℃ Adjustable Charge Temperature -5~55℃ Adjustable
Dimension 53.5*35*2.5 Mm Sample Available
Highlight

Rectangle 4S lithium battery BMS

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14.8V 15A BMS with balancing

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Lithium battery BMS balancing function
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Product Description
Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function


Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function 0



The ITL0040150008-01 is a high-performance, mid-power protection board exclusively engineered for 4-cell series (4S) lithium battery packs—compatible with Li-ion, Li-polymer, and LiFePO4 chemistries—with a maximum discharge current of 15A. Tailored for medium-voltage (nominal 14.8V for Li-ion, 12.8V for LiFePO4) and moderate-to-high load applications, it balances robust safety controls with responsive 15A current handling, making it ideal for mid-power electric tools, recreational gear, and compact energy storage units.

4S-Specific Protection & 15A High-Current Safeguards
Calibrated to address the unique dynamics of 4-cell configurations, the board delivers targeted protection aligned with 4S voltage profiles and 15A discharge demands:
  • Overcharge Protection: Triggers at 4.25V (Li-ion) per cell (total 17.0V for 4S packs), instantly cutting charging current to prevent cell swelling, electrolyte breakdown, or thermal runaway—critical for 4S systems where voltage imbalance across four cells amplifies performance degradation risks.
  • Undervoltage Protection: Shuts down discharge at 2.5V (Li-ion) per cell (total 10.0V for 4S packs), avoiding irreversible capacity loss from "weak cells" that compromise stability during 15A high-load operation (e.g., electric tool startup).
  • 15A Overcurrent & Short-Circuit Protection: Blocks currents exceeding 15A (max discharge) or 45A (peak surge), shielding the 4S pack and connected devices (e.g., cordless angle grinders, mid-sized drones) from burnout during sustained use or accidental short circuits.
  • 4-Cell Active Balancing: Automatically equalizes voltage across all four cells during charging, eliminating uneven charge distribution—a common issue in 4S packs that reduces runtime and lifespan. This feature extends battery life by up to 35% compared to unbalanced systems and maintains consistent 15A discharge performance.

 

Ideal Application Scenarios​
This board is tailored for 4S lithium devices requiring 15A peak discharge:​
  • Mid-Power Tools: 4S cordless drills, small angle grinders, or handheld vacuums (14.8V Li-ion systems);​
  • Recreational Gear: 4S mid-sized drones (for extended flight time), RC cars/boats (high-torque performance), or electric skateboards;​
  • Portable Energy: 4S compact power stations (for charging laptops or small appliances) or camping LED work lights;​
  • Industrial Aids: 4S IoT sensor arrays (moderate-power long-range transmitters) or portable medical devices (e.g., small oxygen concentrators).
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.

Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function 1

Certifications
Advanced Rectangle 4S 14.8V 15A Lithium Battery BMS with Balancing Function 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.

Tags:

bms lithium battery

pcm lifepo4 battery

PCB Circuit Board Assembly