JK B1A8S20P 200A Smart Active Balance BMS
Product Details:
Place of Origin: China
Brand Name: JK BMS
Certification: /
Model Number: JK-B1A8S20P
Payment & Shipping Terms:
Retail Price: /
Wholesale Price: Negotiable
Packaging Details: cartons
Payment Terms: T/T
- Nominal Capacity: / Nominal Voltage: /
- Internal Impedence: / Operating Voltage: /
- Dimension: / Battery Weight: /
Product Description
The JK-B1A8S20P is a professional-grade Smart BMS designed for 3S-8S LiFePO4 and Li-ion battery packs. It features a massive 200A continuous discharge rating and an integrated 1A active balancer. Equipped with Bluetooth for real-time app monitoring, it is the perfect solution for 12V/24V RVs, marine power, and off-grid solar systems.
Sustained 200A Performance with JK-B1A8S20P The JK-B1A8S20P is engineered for high-demand electrical environments. With a 200A continuous current capacity, it can easily handle 2500W-3000W inverters, making it the go-to choice for off-grid builders who need reliable power for appliances, tools, and electronics.
Why Choose the JK-B1A8S20P?
- · Efficient 1A Active Balancing: Unlike passive BMS units that waste energy as heat, the 1A active balancer redistributes charge between cells. This keeps your pack perfectly matched, extending its lifespan and maximizing usable runtime.
- · High-Current Build Quality: Designed with low-resistance MOSFETs and a high-efficiency thermal structure to manage 200A loads safely and consistently.
- · Smart Bluetooth Monitoring: Connect to the JK BMS App to monitor individual cell voltages, state of charge (SOC), and temperature. Customize your protection parameters to fit your specific battery chemistry (LiFePO4/Li-ion/LTO).
- · Comprehensive Safety Shield: Built-in protection against over-voltage, under-voltage, over-current, and short circuits, plus multiple temperature sensors to prevent thermal issues.
Technical Specifications:
- · Cell Support: 3S to 8S (LiFePO4 / Li-ion / LTO)
- · Continuous Current: 200A
- · Peak Discharge: 400A
- · Active Balancing: 0.1A – 1.0A (Energy Transfer)
- · Communication: Bluetooth (Built-in), Support for RS485/CAN modules
Dimension and Details


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Contact Details
Lithium LiFePO4 Batteries and Lithium LiFePO4 Cells Supplier - LiFePO4 Battery Shop
Contact Person: Miss. Elena Wang
WhatsApp : +8615263269227
Skype : +8615263269227
WeChat : 15263269227
Email : info@lifepo4batteryshop.com
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Customer Reviews
- I have fond memories of our meeting in Shanghai with LiFePO4 Battery Shop Elena. Your company left a strong impression on me with its impressive growth and professionalism. We both value straightforwardness and honesty, which I believe are the most important qualities in any partnership. I am confident that we can build a successful collaboration based on these shared values. —— Robert from USA
- I've been working with LiFePO4 Battery Shop for years, and their reliability is unmatched. While other suppliers frequently change sales teams, LiFePO4 Battery Shop has consistently provided exceptional service with a stable team. Their commitment to quality and customer support truly sets them apart. —— Henry from Australia




