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  • Shenzhen BAK Technology Co., Ltd.
    칼리스타
    저는 단호하게 말씀드리겠습니다. 저는 해외 공급업체와 함께 이렇게 훌륭한 고객 서비스를 경험한 적이 없습니다.이 회사는 고객들의 요구를 충족시키기 위해 더 멀리 갔습니다.제 모든 걱정에 대한 응답시간은 즉시 100% 1-24시간 이내에 해결되었고 배송시간은 훌륭했습니다!
담당자 : Dong
전화 번호 : +86 13828713564
whatsapp : +8613828713564

OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function

  • OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function
  • OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function
  • OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function
  • OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function
  • OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function
원래 장소 Dongguan China
브랜드 이름 BAKTH / Neutral / OEM
인증 IEC62133
모델 번호 Bakth-004S006A-0084-01
최소 주문 수량 2 조각
가격 USD 8.75~13.5 /PC
포장 세부 사항 산업용 종이 상자
배달 시간 3-4 주
지불 조건 t/t
공급 능력 10000pcs/월

무료 샘플과 쿠폰을 받으려면 연락하세요.

whatsapp:0086 18588475571

웨이 채팅: 0086 18588475571

스카이프: sales10@aixton.com

걱정이 있으시면 24시간 온라인 서비스를 제공합니다.

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제품 상세 정보
유형 4S 리튬 배터리 보호 보드 호환 인터페이스 smbus
배터리 유형 니켈-이온 전하 감지 전압 (셀) 4.250V ± 0.025V 조정 가능
오버 방전 감지 전압 (셀) 2.400V ± 0.050V 조정 가능 현재 배출에 대해 13.5A ± 0.2A 조정 가능
현재 요금에 대해 5.5A ± 0.2A 조정 가능 배출 온도 -25 6 ​​~ 65 ℃ 조절 가능
충전 온도 -5 ℃ ~ 55 ℃ 조정 가능 차원 130*25*2.2 mm
Max.Discharge 경향 10A 견본 사용 가능
강조하다

14.8V Li-ion BMS board

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BMS protection board with balance

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OEM 4S BMS PCB
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제품 설명


The 4S Lithium Battery Protection Board is a specialized safety and performance component exclusively engineered for 4-cell series (4S) lithium battery packs, covering Li-ion, Li-polymer, and LiFePO4 chemistries. As a critical “safety guardian” for 4S battery systems, it prevents irreversible damage, mitigates safety hazards (e.g., thermal runaway), and extends battery lifespan—making it indispensable for high-voltage consumer electronics, industrial equipment, and mid-power portable energy solutions.​
Tailored Protection for 4S Battery Packs​
Optimized for 4S configurations (nominal voltage: 14.8V for Li-ion, 12.8V for LiFePO4), this board delivers multi-dimensional safeguards calibrated to 4-cell characteristics:​
  • Overcharge Protection: Triggers when any single cell exceeds 4.25V (Li-ion) or 3.65V (LiFePO4), instantly cutting off charging current to avoid cell swelling, electrolyte leakage, or thermal risks—critical for 4S packs where voltage accumulation amplifies overcharge hazards.​
  • Undervoltage Protection: Shuts down discharge if any cell drops below 2.5V (Li-ion) or 2.0V (LiFePO4), preventing permanent capacity loss that plagues 4S packs when “weak cells” drag down the entire system.​
  • Overcurrent & Short-Circuit Protection: Blocks high currents (up to 35A, model-dependent) caused by short circuits or overloads (e.g., high-power tool startups), shielding both the 4S battery pack and connected devices from burnout.​
  • 4-Cell Balancing: Automatically equalizes voltage across all 4 cells during charging, eliminating uneven charge distribution (a common issue in multi-cell packs) and ensuring each cell operates at peak efficiency—avoiding “capacity bottlenecks” from undercharged cells.​
High Precision & Low Idle Power Drain​
Equipped with high-sensitivity voltage detection chips, the board monitors each of the 4 cells with ±2mV precision, ensuring timely and accurate protection responses even for subtle voltage fluctuations. Its ultra-low static current (<10μA) minimizes idle power consumption, preventing unnecessary capacity loss when the 4S pack is stored or not in use—critical for backup devices like emergency lights or portable storage units. Additionally, it features a auto-recovery function: once fault conditions (e.g., overcurrent) are resolved, it resumes normal operation without manual reset, enhancing user convenience.​
Broad Compatibility & Rugged Design​
This protection board supports 4S battery packs with capacities ranging from 1500mAh to 30000mAh, adapting to diverse power needs. It is fully compatible with standard 4S chargers and discharge devices, and works seamlessly with Li-ion, Li-polymer, and LiFePO4 chemistries—eliminating the need for multiple protection boards for different battery types. Constructed with a flame-retardant PCB board and industrial-grade components, it withstands extreme temperatures (-20°C to 85°C) and mechanical vibration, making it reliable for harsh environments like construction sites (electric tools) or outdoor adventures (camping power stations).​
Versatile High-Voltage Applications​
Ideal for 4S battery-powered devices requiring stable high voltage:​
  • Consumer electronics: 4S drone batteries (for longer flight time), high-capacity power banks (fast charging support), and professional LED work lights;​
  • Industrial equipment: 4S cordless power tools (e.g., heavy-duty drills, angle grinders), IoT sensor arrays (high-power transmission), and small medical devices (e.g., portable oxygen concentrators);​
  • Recreational & mobility gear: 4S electric scooters, RC cars/boats (high-torque performance), and camping portable fridges.
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.

OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function 0

Certifications
OEM Support 4S 14.8V Li-ion BMS Protection Board with Balance Function 1
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.

꼬리표:

BMS 리?? 배터리

pcm lifepo4 배터리

PCB 회로 기판 조립체