Battery HD Pro is a $4.49 Android battery monitor that estimates how long your battery will last for things like music, video, calls and browsing, and shows it in a widget or the notification bar. It has no ads and no in-app purchases, and 4.6 stars from 20,886 ratings.
Quick verdict
If you want a clear battery readout, spoken or sound alerts at charge levels you choose, and time-left estimates, Battery HD Pro does that, and several reviewers have used it for years, two of them for about ten. Several praise the alerts, the widgets and how easy the battery level is to see. On the other side, several reviewers paid for Pro and still saw ads, several were asked to pay again on another device, and several expected it to save battery, which it doesn’t claim to do. Older reviews, mostly from 2012 to 2022, report crashes, battery drain and widgets that stopped updating. Only about 5% of all ratings are 1 or 2 stars.
Battery HD Pro at a glance
| Developer | smallte.ch |
|---|---|
| Store listing | Battery HD Pro on Google Play |
| Price | $4.49 (paid app, no in-app purchases) |
| Ads | None |
| Play Store rating | 4.6 stars from 20,886 ratings (78% of the ratings in the store’s rating breakdown are 5-star) |
| Downloads | 100,000+ |
| Version / last updated | Varies with device / January 12, 2026 |
| Requires | Not in our data |
| First released | March 26, 2012 |
| Data checked | October 19, 2026 |
What is Battery HD Pro?
Battery HD Pro is a battery monitor for phones and tablets. Its core is a list of time estimates: how many hours you have left for music, video, calls, browsing, games, GPS navigation, photos and more, plus the time to recharge. The listing says it can be calibrated for your device, and it asks owners of new or rare devices to run calibration tests. It has been on Google Play since March 2012. The developer’s replies stress that it only monitors: it doesn’t change how your battery charges or drains.
Key features
- Time-left estimates: hours remaining for activities including music, video, calls, Wi-Fi or mobile browsing, standby, the flashlight, games, reading, GPS, video chat, photos and video recording.
- Charge alerts: alerts when the phone charges or discharges to a percentage you set.
- Widget and notification bar: the battery information at a glance on the home screen or in the notification bar.
- Usage chart: a chart of your daily battery use.
- Calibration: device-specific calibration tests, shared with other users.
Battery HD Pro vs. what a widgets app should have
The Status column shows where we found each feature. “Listed” means the Google Play listing names it, “Partial” means the listing covers part of it, and “Reviews only” or “Reviews and developer replies” means we found it outside the listing. “Not listed” means we found no sign of it. Battery HD Pro is a battery monitor with a widget, so many rows written for widget editors don’t apply.
Must have
| Feature | Status | Notes |
|---|---|---|
| Home screen widgets in several sizes | Partial | The listing mentions a widget. Reviewers mention 1×1 and 1×2 widgets and a selection of sizes. |
| Lock screen widgets | Not listed | |
| Design editor (text, images, layout) | Reviews only | Several reviewers mention choosing colors; no editor is listed |
| Ready-made designs or templates | Not listed | |
| Common data (time, date, weather, calendar, battery) | Partial | Battery data only |
| Stays up to date | Not listed | A few reviewers say the widget stopped updating, most of them before 2021 |
| Transparent or wallpaper-matching background | Not listed |
Should have
| Feature | Status | Notes |
|---|---|---|
| Help or a support contact | Reviews and developer replies | The developer’s replies point to [email protected]. A few reviewers say support didn’t help or didn’t answer. |
| Restoring purchases on a new device | Reviews and developer replies | Replies say one payment covers devices that use the same default Google account. Several reviewers say they were asked to pay again. |
| Usable free tier | Reviews only | This is the paid app. Two reviewers mention a free version. |
| Tap actions that open apps | Not listed | |
| Sharing or importing designs | Not listed | One reviewer had to redo their color scheme on a new phone |
| Smartwatch faces | Not listed | |
| Music, health or fitness data | Not listed |
Nice to have
| Feature | Status | Notes |
|---|---|---|
| Charts and gauges | Listed | A usage chart; reviewers also mention temperature and voltage graphs |
| Tablet support | Listed | The listing says phone or tablet |
| Live wallpaper | Reviews only | Two reviewers like it; one in May 2026 says it wasn’t available |
| One-time purchase | Listed | $4.49 |
| No ads | Listed | Several reviewers saw ads after paying, two of them in 2025 |
| Custom data sources or automation | Not listed |
The widget shows the battery and nothing else. The app is built around its time estimates and alerts, and the widget is one place to see them.
Common problems
Some of these reports come from 4- and 5-star reviews; across all ratings, about 7% are 1 to 3 stars. Many reports are years old, and newer versions may behave differently. Many developer replies in our sample only ask you to email [email protected]; the fixes below are from the replies that say more.
| Problem | What reviewers report | When | What the developer’s replies suggest |
|---|---|---|---|
| Ads after buying Pro | Several reviewers. One in March 2025 says the ad version shows for about 30 seconds before the Pro version replaces it. | 2015 to September 2025 | The paid version has no ads; Google can take up to 6 hours to confirm a purchase, and you should remove the free version if both are installed (2017) |
| Asked to pay again | Several reviewers, on a second device or the Huawei app store | 2020 to April 2026 | One payment covers devices with the same default Google account; set that account as the default in Google Play (2021 and 2024) |
| Crashes | Several reviewers, most in February 2019 | August 2018 to April 2022 | Delete and reinstall (2019); a crash fix in version 1.97 (November 2021) |
| Widget stops updating or doesn’t show | Several reviewers; one names Android 10 on LG and OnePlus phones | 2014 to January 2024 | None beyond email |
| Alerts too short, wrong or silent | Several reviewers; a few say the alarm rings only once or stops too soon | 2016 to January 2025 | None beyond email |
| Calibration takes hours or fails | Several reviewers; one says it took 7 to 9 hours for 4 tests | 2014 to 2024 | None beyond email |
Pros (from user reviews)
- Works well: several reviewers say it works well, does what it says or always works correctly.
- Alerts at your levels: several reviewers like the alerts at charge levels they choose, such as 50, 25 and 15%, or above 80% and below 20%, and several single out the voice announcements. Several others say alerts were too short, silent or wrong (see Cons).
- Years of use: several reviewers have used it for years, and two say about ten. A few long-time users say it got worse after an update or on a new phone.
- Easy to see: several reviewers say it is easier to read than the phone’s own small battery icon; one says they can read it without glasses. One says it doesn’t show the remaining time without opening the app.
- Widgets and colors: several reviewers like the widgets, including 1×1 and 1×2 sizes, and several like choosing the colors.
- Graphs and data: several reviewers like the graphs for temperature, voltage and charge level. Two say the voltage graph only reads up to 5 V for fast charging (2017).
- Time estimates: a few reviewers find the remaining-time estimates useful. A few others say they were optimistic or wrong, two of them in 2013 and 2016.
- No ads: a few reviewers say the Pro version has no ads.
Cons (from user reviews)
- Ads after paying: several reviewers paid for Pro and still saw ads, most between 2015 and 2020 and two in 2025.
- Paying twice: several reviewers say they paid twice or were asked to pay again. The developer’s replies say one payment covers devices that use the same default Google account.
- It doesn’t save battery: several reviewers expected it to make the battery last longer, charge faster or stop charging at a limit. The developer’s replies say it only monitors and estimates; no app can charge the battery.
- Crashes and drain: several reviewers report crashes, most in February 2019, and several others say it drained the battery or slowed the phone, most between 2012 and 2015.
- Accuracy: several reviewers say the percentage or capacity was wrong at times; the newest, in October 2025, says the charge percentage became inaccurate after an update. Two others call it accurate.
- Charging details: a few reviewers want charging speed, current or a charging indicator, while one praises the incoming voltage and watts it shows while charging.
- Calibration: several reviewers say calibration took hours or failed on their phone.
- Other reports: a few say notifications are too frequent or intrusive, and a few say support didn’t help. One reviewer in April 2025 says the app bypasses the lock screen on wake-up, and another says it switched on Do Not Disturb by itself.
More than a quarter of the reviews in our sample are 1 or 2 stars because of how the sample was drawn (see the last section). Across all ratings, about 5% are 1 or 2 stars and 78.1% are 5-star.
Rating breakdown
| Stars | Ratings | Share |
|---|---|---|
| 5 | 16,286 | 78.1% |
| 4 | 3,126 | 15.0% |
| 3 | 413 | 2.0% |
| 2 | 413 | 2.0% |
| 1 | 623 | 3.0% |
Source: Google Play ratings histogram, checked October 19, 2026. The histogram adds up to 20,861 ratings, slightly fewer than the 20,886 total, and the shares are of the histogram total.
Pricing
Battery HD Pro costs $4.49 on Google Play, with no in-app purchases and no ads. If you use more than one device, the developer’s replies say one payment covers devices with the same default Google account, so check that account in Google Play before you pay again. Several reviewers say they were charged twice or asked to buy it again, and one in March 2025 says the Huawei app store wanted a separate payment.
Privacy and permissions
We couldn’t read the Google Play data safety section for Battery HD Pro, so we make no claim about what it declares there. The Play Store’s permissions list is long: adjust your wallpaper size, change your audio settings, control flashlight, control vibration, disable your screen lock, draw over other apps, full network access, modify or delete the contents of your USB storage, pair with Bluetooth devices, prevent device from sleeping, read Google service configuration, read battery statistics, read the contents of your USB storage, receive data from Internet, run at startup, set wallpaper, take pictures and videos, and view network connections. The listing doesn’t explain them. Two reviewers question the permissions or the network access.
Who it’s for
Battery HD Pro fits you if you want to know how long your battery will last for a specific task, like a video or a drive with GPS, and you want spoken or sound alerts at levels you pick. It also suits you if the status bar icon is too small to read. Skip it if you want an app that makes your battery last longer: it only monitors. If you use several devices, make sure they share one default Google account so you don’t pay twice.
FAQ
Does Battery HD Pro make my battery last longer?
No. The developer’s replies say the app has no physical effect on your device: it monitors usage and estimates how long the battery will last for different activities. Several reviewers expected it to save or charge the battery and were disappointed.
Why do I see ads after buying Battery HD Pro?
Google Play lists the app with no ads. Several reviewers saw ads after paying, two of them in 2025. In 2017 replies, the developer said Google can take up to 6 hours to confirm a purchase and that you should remove the free version if both are installed.
Do I have to pay again on a new phone or tablet?
The developer’s replies say no, as long as the device uses the same default Google account you bought it with. Several reviewers say they were asked to pay again anyway, and one says the Huawei app store wanted a separate payment.
Can Battery HD Pro announce the battery level out loud?
Several reviewers say yes and like the voice announcements at the levels they set. The listing describes alerts when the phone charges or discharges to a set percentage. A few reviewers say the alarm rings only once or stops too soon.
How this review was put together
We haven’t tested Battery HD Pro. This review is based on public information from official sources: the app’s Google Play or App Store listing and rating breakdown, the developer’s website when there is one, and recent user reviews on the store with the developer’s replies. Features and claims are the developer’s own descriptions; what users like and dislike comes from the store reviews. Everything was checked on October 19, 2026. Apps change with every update, so check the store listing before you install.
