£53.93

JKBMS Smart BMS 8S-20S 40A Active Balance Bluetooth Board

Jk Bms, JK-BD4A20S4P

Price data last checked 51 day(s) ago - refreshing...

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About as cheap as it gets. The only time it was cheaper was 6 months ago.

£54 today · all-time low £53 (Jan 2026) · usually the usual

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 83 days · 54 data points (no recent data)

Historical
Generating forecast…
£55.38 £52.43 £53.08 £53.72 £54.36 £55.00 £55.65 02 December 2025 22 December 2025 12 January 2026 01 February 2026 22 February 2026

Price Distribution

Price distribution over 83 days • 3 price levels

Days at Price
Current Price
24 days 29 days · current 1 day 0 7 15 22 29 £53 £54 £55 Days at Price

Price Analysis

Most common price: £54 (29 days, 53.7%)

Price range: £53 - £55

Price levels: 3 different prices over 54 days

Description

The JKBMS Smart BMS (JK-BD4A20S4P) provides advanced management for your lithium battery packs. Designed for versatility, this protection board supports Li-ion, LiFePO4, and LTO chemistries, making it an ideal choice for electric motorbikes, electric scooters, and various other applications. By integrating active equalization, this BMS helps extend the overall life of your battery cells and improves overall performance. Safety is a primary focus of this unit. The board protects your battery system against several common risks, including overcharging, overdischarging, overcurrent, short circuits, and extreme temperature conditions. This ensures your battery pack operates within safe limits during use. Managing your power system is simple with built-in Bluetooth connectivity. Through the JK BMS mobile app, available for both Android and iOS, you can monitor your battery status in real time. The app allows you to adjust settings and control both charging and discharging processes directly from your smartphone, providing a user-friendly way to keep track of your energy storage performance.

Key Features

Enhanced Safety Protection: Safeguard your battery cells against overcharging, overdischarging, overcurrent, short circuits, and temperature extremes to prevent damage.

Smart Bluetooth Monitoring: Use the JK BMS mobile app on Android or iOS to monitor battery status and control charging or discharging settings from your device.

Active Equalization Technology: JKBMS active balance features help extend battery life and improve the performance of your lithium battery pack.

Wide Battery Compatibility: This versatile BMS is designed to work seamlessly with Li-ion, LiFePO4, and LTO battery chemistries.

Versatile Application Use: A reliable solution for powering electric motorbikes, electric scooters, and other lithium-based battery systems.

Integrated Connectivity: Includes built-in Bluetooth and RS485 communication for streamlined data access and management.

Product Specifications

Brand
JKBMS
Colour
Jk Bms
Size
Jk-bd4a20s4p
Domain
Amazon UK
Listed Since
13 June 2025