BLE Battery Management System for Home Assistant (Marketplace integration)

Installs: 1.8k sharing analytics
GitHub stars: 375
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: 2.18.0, October 27, 2026
Category: Energy, Solar and batteries
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: bms_ble
Source: github.com/patman15/BMS_BLE-HA
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

Screenshots From the README of patman15/BMS_BLE-HA.

About

BLE Battery Management System monitors Bluetooth Low Energy battery management systems from within Home Assistant. It works locally and is set up in the UI, and Home Assistant can discover compatible batteries on its own and offer to add them. It adds binary sensors for the balancer, charge and discharge MOSFETs and the heater, plus sensors such as battery health, cycles, design capacity, link quality, runtime and highest, lowest and delta cell voltage. The readout of individual cell voltages helps in judging battery health, and any number of batteries can run in parallel. The Bluetooth range can be extended with an ESPHome Bluetooth proxy. Options cover an optional device password and a setting to keep the Bluetooth connection alive between updates, which is meant to be turned off only when a single-connection adapter is shared with other integrations. A diagnostics file can be downloaded to attach to bug reports.

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Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
Found by itself Home Assistant spots it on the network and offers to add it.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Sensors

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

Connect

Bluetooth name (MAC address) - Model

After setup

Device passwordOptional password to unlock device.
Keep connection alive between updatesKeep the Bluetooth connection between update cycles. Disabling this degrades BMS connection reliability and is only recommended as a last resort when sharing a single-connection Bluetooth adapter (e.g. Realtek RTL8761B) with other integrations. Consider using a dedicated Bluetooth adapter instead.

Texts from the code of patman15/BMS_BLE-HA.

Entities

Binary sensorsBalancer, Charge MOSFET, Discharge MOSFET, Heater
SensorsBattery health, Cycles, Delta cell voltage, Design capacity, Link quality, Highest cell voltage, Lowest cell voltage, Runtime

Troubleshooting

DiagnosticsDownloads a diagnostics file to attach to a bug report.

From the README

This integration allows to monitor Bluetooth Low Energy (BLE) battery management systems (BMS) from within Home Assistant. After installation, no configuration is required. You can use the ESPHome Bluetooth proxy to extend the Bluetooth coverage range. By using standard dashboard cards, it is easy to visualize the current state of remote batteries.
Zero configuration
Auto detects compatible batteries
Supports ESPHome Bluetooth proxy
Any number of batteries in parallel
Native Home Assistant integration (works with all HA installation methods)
Readout of individual cell voltages to be able to judge battery health
100% test coverage

From the README of patman15/BMS_BLE-HA, Apache License 2.0. Shortened.