---
title: "Battery Percentage – Chrome extension stats, history and permissions"
description: "508 users, rated 4.50 by 4 people. Version 2.0.1, updated 2026-06-18. Requests 6 permissions."
url: "https://extensiontracker.com/extension/bcknfhofonlfillmlonppglflhgdbeoa"
---

# Battery Percentage

Live in the Chrome Web Store.

- Users: 508
- Rating: 4.50 from 4 ratings
- Last checked: 2026-09-26 22:13 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #33,596 of 264,703 live extensions
- Rank in Tools: #9,384 of 103,498

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Displays the battery percentage in digital form on the toolbar or its own floating window, and sends smart notifications.

- Extension ID: `bcknfhofonlfillmlonppglflhgdbeoa`
- Developer: [karel.test.special](https://extensiontracker.com/developer/ubf8480f9ed523f26e067d1be5709574a)
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2025-07-09
- Last updated: 2026-06-18
- Version: `2.0.1`
- Size: 215 KiB
- Minimum Chrome: 88
- Languages (1): English
- Privacy policy: `https://github.com/KarelTestSpecial/battery-percentage/blob/main/PRIVACY-POLICY.md`
- Chrome Web Store: <https://chromewebstore.google.com/detail/battery-percentage/bcknfhofonlfillmlonppglflhgdbeoa>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fbcknfhofonlfillmlonppglflhgdbeoa>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 508 | 4.50 | 4 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## What it can access

From the extension's manifest, in plain language.

### Browser features

- `alarms`: Run tasks on a schedule
- `idle`: Detect when you're away from the computer
- `notifications`: Show notifications
- `offscreen`: Open a hidden page for background work
- `storage`: Save settings and data in your browser
- `windows`: Manage browser windows

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [Google AI Studio - File Reader](https://extensiontracker.com/extension/holadmfpcclmpmkdkmcanifihneflfop) | 898 | 4.29 | 7 | Tools |
| [NotebookLM Source Uploader](https://extensiontracker.com/extension/cflibmhmbbbnkjhobikinkkabplcijdj) | 396 | 5.00 | 1 | Tools |
| [YouTube Playlist Collector](https://extensiontracker.com/extension/noadbldckkkcfkhghjehpdldgppbggde) | 123 | 5.00 | 1 | Tools |
| [YouTube Rightclick Link Collector](https://extensiontracker.com/extension/dceebkineaajkfponfimilfebkgbcchh) | 96 | 4.20 | 5 | Tools |
| [Slim Window Video Viewer](https://extensiontracker.com/extension/fipgcfcgjcpjceknaffnnoaohcgfkpmb) | 81 | 5.00 | 2 | Tools |
| [MD Reader](https://extensiontracker.com/extension/goalplggggiichklpdoddiigimkfcjpc) | 54 | 5.00 | 1 | Tools |
| [Very Practical Clock & Notepad](https://extensiontracker.com/extension/ncooonkkjoeikgkbbljefnmhldpgdpdn) | 51 | 5.00 | 2 | Workflow & Planning |
| [NewTab Startpage Organizer Dashboard](https://extensiontracker.com/extension/llhggelkoodddbgmnmfplcmchbbkkjpk) | 24 | 5.00 | 1 | Workflow & Planning |
| [Easy Prompting](https://extensiontracker.com/extension/mjbpnnipoakagldakcoibngaekedfanm) | 3 | 5.00 | 1 | Tools |

All 10 extensions by [karel.test.special](https://extensiontracker.com/developer/ubf8480f9ed523f26e067d1be5709574a).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-26 22:13 UTC; next check around 2026-10-08.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “Battery Percentage” (bcknfhofonlfillmlonppglflhgdbeoa). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/bcknfhofonlfillmlonppglflhgdbeoa. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_bcknfhofonlfillmlonppglflhgdbeoa,
  title   = {Battery Percentage (bcknfhofonlfillmlonppglflhgdbeoa)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/bcknfhofonlfillmlonppglflhgdbeoa},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/bcknfhofonlfillmlonppglflhgdbeoa>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.