Maxim
DS2438 smart battery monitor
Energy · And More
WorksLocal
1 report: 1 says it works.
Reported with 1 integration: 1-Wire.
What people report
| Integration | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| 1-Wire | Works Local | Often used as multisensor for humidity, pressure, lightSaved copy… coupler for bus branching, which creates a device without entities; 20: DS2450 quad analog-to-digital converter; 22: DS1822 temperature sensor; 26 and A6: DS2438 smart battery monitor, often used as a multisensor; 28: DS18B20 temperature sensor; 29: DS2408 8-channel addressable switch; 30: DS2760 battery monitor, often used with a type K thermocouple; 3A: DS2413 dual-channel addressable switch; 3B: DS1825 temperature sensor; 42: DS28EA00 temperature sensor; EF: Hobby Boards temperature and humidity sensor, moisture meter, and hub; Humidity: with a compatible Honeywell (HIH3600, HIH4000, … Excerpt saved from home-assistant.io on 2026-10-23. | Docs |
Each row is one report from a GitHub thread, an integration’s docs, or r/homeassistant. Check the date and the linked source before you buy.
In ReReHome
Once Home Assistant’s HomeKit Bridge shares it, this device reaches Apple Home as a HomeKit accessory behind your Home Assistant bridge, so ReReHome shows and controls it like any other.
Identifiers
| Brand | Maxim |
|---|---|
| Model | DS2438 |
| Category | Energy |