# Blink Battery Doorbell 2K+

*Blink / BDM00400U, BDM01400U, BDM05400U*

> The Battery Doorbell 2K+ is a battery doorbell with 2K video that needs a Blink Sync Module and works with Alexa. It suits Alexa users, with native support through the maker's hub.

- Canonical page: https://smarthomecanon.com/devices/blink-battery-doorbell-2k-plus
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Blink](https://smarthomecanon.com/brands/blink) |
| Category | Doorbell |
| Model numbers | BDM00400U, BDM01400U, BDM05400U |
| Status | Current[^1] |
| Type | Battery video doorbell[^2] |
| Video | 1920p HD color[^2] |
| Field of view | 140 degree horizontal, 173 degree diagonal[^2] |
| Power | Three AA lithium batteries; up to two years at default settings[^2] |
| Weather rating | IP65[^2] |
| Sync Module | Required; works with any Sync Module[^2][^3] |

## Integration paths

**How the Blink Battery Doorbell 2K+ connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Proprietary + hub](https://smarthomecanon.com/protocols/proprietary-gateway) | Blink Sync Module 2, Blink Sync Module XR, Blink Sync Module Core, Blink Sync Module (1st Gen)[^2][^3] | unknown | unknown |

**Platform support for the Blink Battery Doorbell 2K+**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Proprietary + hub | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^4] |  |
| Proprietary + hub | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | com.blinkforhome |

## Related pages

- [Blink doorbells and Chime](https://smarthomecanon.com/lines/blink-doorbells) (line)
- [Blink](https://smarthomecanon.com/brands/blink) (brand)
- [Proprietary radio with a hub](https://smarthomecanon.com/protocols/proprietary-gateway) (protocol)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: Blink cameras and systems. https://blinkforhome.com/products (manufacturer, checked 2026-10-13)
[^2]: Battery Doorbell 2K+ technical specifications. https://support.blinkforhome.com/en_US/battery-doorbell-2k-technical-specifications (manufacturer, checked 2026-10-13)
[^3]: Sync Module requirements for Blink devices. https://support.blinkforhome.com/using-your-sync-module/sync-module-reqs (manufacturer, checked 2026-10-13)
[^4]: Battery Doorbell 2K+ FAQ. https://support.blinkforhome.com/en_US/battery-doorbell-2k-plus-faq/battery-doorbell-2k-faq (manufacturer, checked 2026-10-20)