JKBMS JK-B1A8S20P Smart BMS 200A 1A Active Balancer Bluetooth – 4S-8S Battery Protection Board

Build and manage a compatible lithium battery pack with the JKBMS JK-B1A8S20P Smart Battery Management System. This smart BMS combines battery protection, active cell balancing and Bluetooth monitoring in one battery management solution.

Designed for supported battery configurations, the JK-B1A8S20P provides 1A active balancing and a 200A continuous current rating. Bluetooth connectivity allows battery monitoring through a compatible mobile application.

Key Features

• Model: JK-B1A8S20P

• 1A Active Balancing: Active balancing system with a documented balancing current of 1A.

• 200A Continuous Current: Manufacturer documentation specifies 200A continuous discharge current.

• Bluetooth Monitoring: Bluetooth functionality for supported mobile monitoring.

• Battery Configuration: Supports 3S–8S Li-ion and 4S–8S LiFePO4 configurations according to the model specification.

• Battery Protection: Documentation lists overcharge, over-discharge, overcurrent, short-circuit and temperature protection functions.

• Common-Port Design: Manufacturer documentation identifies a common charge/discharge port configuration.

• Communication: RS485 interface is available in documented configurations; confirm the included interface version before ordering.

Technical Specifications

Specification note: Voltage accuracy differs between available documentation. Confirm the exact revision supplied before publishing a single accuracy value. Peak current, dimensions, accessory contents and RS485 inclusion should also be verified against the physical stock version.

Applications

Suitable application categories for a compatible battery system may include:

• Solar and off-grid battery storage

• Backup power systems

• RV and camper battery systems

• Electric mobility projects

• DIY lithium battery pack development

The BMS must be selected according to the battery chemistry, series configuration, current requirements and system wiring.

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These are related battery products, not confirmed compatible accessories for this BMS. Check voltage, chemistry, configuration and connector requirements before connecting.

Installation and Safety

• Match the BMS to the battery chemistry and series configuration.

• Verify cell voltage and polarity before connecting the sampling wires.

• Follow the manufacturer's wiring diagram for the exact BMS revision.

• Do not short-circuit battery terminals or BMS connections.

• Use suitable wiring, connectors and protection for the intended current.

• Installation should be performed by a qualified person familiar with lithium battery systems.