Battery Monitor for Home Assistant (Marketplace integration)

Installs: 529 sharing analytics
GitHub stars: 37
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: v1.2.4, October 20, 2026
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: battery_monitor
Source: github.com/DomoticaFacile/battery_monitor
Issues: Report an issue

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

About

Battery Monitor is a custom integration that gathers every battery entity in Home Assistant into one overview. It finds battery entities automatically by device class, with an optional name-based check for sensors that report a percentage. Summary sensors report the monitored total, how many are low or at zero, the lowest battery, percentages, a traffic-light status and a list of devices below the threshold. Low and critical thresholds are adjustable, and filters can include or exclude entities by domain, selection or name pattern. Unavailable batteries keep their last known value, which can be limited to a set number of hours, and a notification can be created when a battery reads 0%. It works locally and is set up in the UI.

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Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
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.

Battery Monitor

Low battery threshold (%)
Critical battery threshold (%)
Use heuristic (battery in name/entity_id) in addition to device_class
Domains to scan (comma-separated, e.g. sensor, binary_sensor)
Include only these entities (multi-select)
Exclude these entities (multi-select)
Include only entity_id matching (fnmatch, comma-separated)
Exclude entity_id matching (fnmatch, comma-separated)
Ignore 0% when calculating the lowest battery
Treat unavailable batteries as 0% (when no last known value exists)
Keep last known value of unavailable batteries for (hours, 0 = until the entity is removed from Home Assistant)
Notify when a 0% value appears

After setup

Low battery threshold (%)
Critical battery threshold (%)
Use heuristic (battery in name/entity_id) in addition to device_class
Domains to scan (comma-separated, e.g. sensor, binary_sensor)
Include only these entities (multi-select)
Exclude these entities (multi-select)
Include only entity_id matching (fnmatch, comma-separated)
Exclude entity_id matching (fnmatch, comma-separated)
Ignore 0% when calculating the lowest battery
Treat unavailable batteries as 0% (when no last known value exists)
Keep last known value of unavailable batteries for (hours, 0 = until the entity is removed from Home Assistant)
Notify when a 0% value appears