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  • Shenzhen BAK Technology Co., Ltd.
    Kallista
    Tôi sẽ tóm tắt ngắn gọn thôi! Tôi chưa từng trải nghiệm dịch vụ khách hàng tuyệt vời đến vậy từ một nhà cung cấp nước ngoài. Công ty này đã vượt xa để đáp ứng nhu cầu của khách hàng. Thời gian phản hồi của họ với tất cả các vấn đề của tôi đều được giải quyết ngay lập tức 100% trong vòng 1-24 giờ và thời gian vận chuyển là TUYỆT VỜI!
Người liên hệ : Dong
Số điện thoại : +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
Nguồn gốc Dongguan Trung Quốc
Hàng hiệu BAKTH / Neutral / OEM
Chứng nhận IEC62133
Số mô hình BAKTH-004S006A-0084-01
Số lượng đặt hàng tối thiểu 2 mảnh
Giá bán USD 8.75~13.5 /PC
chi tiết đóng gói Giấy công nghiệp carton
Thời gian giao hàng 3-4 tuần
Điều khoản thanh toán T/t
Khả năng cung cấp 10000pc/tháng

Liên hệ với tôi để lấy mẫu miễn phí và phiếu giảm giá.

WhatsApp:0086 18588475571

WeChat: 0086 18588475571

Skype: sales10@aixton.com

Nếu bạn có bất kỳ mối quan tâm nào, chúng tôi cung cấp hỗ trợ trực tuyến 24 giờ.

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Thông tin chi tiết sản phẩm
Kiểu Bảng bảo vệ pin lithium 4S Giao diện tương thích Smbus
Loại pin Li-Ion Điện áp phát hiện điện tích quá điện (ô) 4.250V ± 0,025V có thể điều chỉnh
Điện áp phát hiện quá mức (ô) 2,400V ± 0,050V có thể điều chỉnh Trên sự xuất viện hiện tại 13,5a ± 0,2a có thể điều chỉnh
Qua phí hiện tại 5,5a ± 0,2a có thể điều chỉnh Nhiệt độ xả -25 ℃ ~ 65 có thể điều chỉnh
Nhiệt độ sạc -5 ℃ ~ 55 có thể điều chỉnh Kích thước 130*25*2,2 mm
Dòng xả tối đa 10A Vật mẫu Có sẵn
Làm nổi bật

14.8V Li-ion BMS board

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BMS protection board with balance

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OEM 4S BMS PCB
Để lại lời nhắn
Mô tả sản phẩm


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.

thẻ:

pin lithium bms

pin pcm lifepo4

Bộ PCB