PC Fixes
Vow Driver Finder
Find the drivers your PC is really missing, from official sources only
- Free: Unlimited scans, official links, 5 in-app searches a day
- $4.95 once: One-click install, backup and restore, offline driver packs
Vow Battery Doctor
The honest battery check-up for Windows laptops
Is your laptop battery worn out? Get a straight answer.
Vow Battery Doctor reads the battery's own data the moment it opens: health, wear, cycles and a clear verdict on whether to replace it. Then it shows which apps are eating your charge, in watts. No scare tactics, no "battery booster", nothing uploaded.
- No ads
- No malware
- No account
- Light & dark theme
- Full health check-up, live drain and today's top apps, 3 reports a day
No ads. Ever.No pop-ups, no banners, no "offers".
No malware or bundlewareThe installer installs one thing: this app.
No account, no uploadIt works on your PC, and your files stay there.
Free daily limits, just $4.95 unlimitedNo subscription. No trial that runs out.
The problem
Battery apps love a scary number
Your laptop dies by mid-afternoon. You want to know why, and whether a new battery would help. Instead you get raw figures, ads and a "boost" button.
"Battery damaged!" pop-ups
Scareware battery tools invent alarming warnings and a one-tap "repair", because frightened people pay.
Numbers with no meaning
Windows' own battery report is pages of milliwatt-hours. It never says whether your battery is fine or finished.
Only a week of history
Windows Settings keeps per-app battery use for just 7 days, with no export, so slow drains are hard to pin down.
Ads in a battery app
Free "battery savers" that run adverts in the background, using the very charge they promise to save.
A subscription for a reading
Monthly plans just to see the health figure your laptop already records for free.
Replacing it too soon
Without a clear verdict it's easy to buy a new battery, or a whole new laptop, when the old one still had years left.
Vow Battery Doctor fixes all of it.
How it works
Open. Read. Decide.
The battery's real condition in plain words, the apps behind the drain, and the settings that buy you more time.
- 01
Open it: the check-up runs by itself
No clicks needed. A health gauge, wear, cycles, capacity now versus new and a plain verdict appear straight away, with charge, watts and time left beside it.
Open it and the battery check-up runs by itself - 02
See what is draining it
The Drain page splits the battery's measured draw between your apps, live and for today. Unlimited adds every app's history for yesterday, 7, 30 or 90 days.
...and the rest of the app list, plus the history section - 03
Buy yourself more time
Switch the power mode, plan and brightness in one click, save three profiles, and let Unlimited switch them when you plug in or unplug.
Switch power mode, plan and brightness in one click
Features
Everything your battery can tell you, in one place
Health, history, drain, power profiles and alerts, for people who want facts instead of fear.
Health in one number
The share of its original capacity your battery still holds, with wear, cycle count, chemistry, maker and temperature.
Replace or keep, in plain words
A verdict from Excellent to Replace now, with advice, the capacity lost per month and the month it will reach 80% and 60%.
Capacity history
A chart of health over the battery's whole life, with the usual 80% "worn" mark, from Windows' own records.
Drain measured from the battery
Per-app watts are split from the battery's own power reading, not guessed from CPU alone, and averaged over the last minute.
Per-app drain history
Yesterday, 7, 30 or 90 days: battery used per app, CPU on battery and plugged in, peaks, search and CSV export.
Power profiles
Plugged in, On battery and Maximum battery: a power mode, plan and brightness applied together, switched automatically if you like.
Battery alerts
Unplug at 80% to slow wear, plug in before it dies, heavy drain, an app hogging power, charger in or out, and quiet hours.
Check another laptop
Drop a battery report from any Windows laptop onto the window and get the same diagnosis for that machine's battery.
Reports in one click
Save the whole check-up as HTML, CSV or text, or open Windows' own HTML battery report straight from the app.
Light and dark theme
One click on the sun or moon button in the side rail switches between light and dark, or let it follow Windows.
Light & dark theme
Easy on the eyes, day or night.
Battery Doctor comes with a crisp light theme and a calm dark theme. Switch with one click, or let it follow your Windows setting by itself. It remembers your choice.
- LightClear and bright for daytime and busy offices
- DarkGentle on tired eyes late at night
- Follow WindowsChanges by itself when your PC does
Screenshots
See Vow Battery Doctor in action
Real screenshots of the real app, in both of its themes: 9 light, 9 dark. Click any picture to see it full size.
Light theme
Dark theme
Who it's for
When a battery check-up pays off
"It used to last all day"
Find out whether the battery has worn down or an app is quietly draining it.
Buying a used laptop
Check wear and cycle count before you hand over the money, or ask the seller for a battery report.
Before paying for a new battery
A clear replace-or-keep verdict, with how much longer a new battery would actually last.
Long days away from a socket
Switch to the Maximum battery profile in one click and see which apps to close first.
IT and repair technicians
Open customers' battery reports, save HTML or CSV results and judge every laptop the same way.
Students and remote workers
Keep a laptop healthy for longer with the unplug-at-80% reminder and a record of what drains it.
Compare
Vow Battery Doctor vs typical "battery saver" apps
Why a real diagnosis beats a booster button and a monthly fee.
| Feature | Vow Battery Doctor | Typical battery saver apps |
|---|---|---|
| Price | Free check-up, or $4.95 once | Monthly or yearly plans |
| Fake "battery damaged" warnings | Never | Common |
| Clear replace-or-keep verdict | Yes, with dates for 80% and 60% | Raw numbers, if any |
| Per-app drain measured from the battery | Yes, in watts | Rarely |
| Drain history beyond a week | 7, 30 or 90 days, with CSV | Seldom |
| Ads inside the app | None | Often |
| Your data uploaded | Nothing leaves your PC | Sometimes |
| Reads other laptops' battery reports | Yes, HTML or XML | Rarely |
"Typical" describes what we found across the most-downloaded alternatives when we built Battery Doctor. Your mileage with any one of them may vary; ours won't.
Pricing
Free every day. Just $4.95 once for the lot.
That is not a typo. Software this powerful usually means a monthly subscription; Battery Doctor is $4.95, once, for life: it's almost a giveaway. Use it free for as long as you like, and unlock Unlimited only if you need more.
Free
$0forever
Full health check-up, live drain and today's top apps, 3 reports a day.
- Full battery check-up: health, wear, cycles, temperature
- Replace-or-keep verdict, outlook and capacity history
- Live drain in watts and the apps draining it right now
- Today's top 3 apps, power mode, plan and brightness
- 3 saved reports a day (resets at local midnight)
- Open battery reports from other laptops, no ads
Best valueUnlimited
$4.95USD, once. Yours for life.
Almost a giveaway. Less than a coffee for software this powerful: no subscription, no renewals, yours for life on 2 PCs.
Per-app drain history, automatic power profiles, battery alerts.
- Per-app drain history: every day, every app, CSV
- Windows' own per-app energy history import
- Automatic power profiles on plug, unplug, low battery
- Battery alerts, including unplug at 80%
- Unlimited saved reports
- One payment, for life on 2 PCs
How unlocking works
- 1Use it free first Install Vow Battery Doctor and use it on your own files. No card, no account, no time limit.
- 2Click "Unlimited" in the app Pay $4.95 USD once by card, securely through Stripe in your browser.
- 3It unlocks itself Within seconds, for life, on up to 2 of your PCs. Your license key is emailed to you, and every future update is included.
Payments by Stripe: we never see or store your card. Questions? Ask a real person.
Clean software
Safe to install. Nothing else comes with it.
Most "free" Windows downloads pay for themselves with ads, bundled extras or your data. Vow Battery Doctor doesn't need to: it's paid for honestly, once, by the people who find it useful.
Download Battery Doctor free- No ads, toolbars or "offers"The installer installs one thing: Vow Battery Doctor. No pre-ticked boxes to watch out for.
- No administrator rights neededIt installs just for you, in your own user folder, and leaves the rest of Windows alone.
- Nothing running in the backgroundNo startup programs, no tray nags, no services. When you close it, it's closed.
- Everything includedAll it needs is inside the installer, so you never have to fetch a "required component" from somewhere else.
- Uninstalls cleanlyOne click in Windows Settings > Apps. Your own files are never touched.
- A real company behind itMade, published and supported by XTO Pty Ltd, an Australian company, with real people answering every message.
Step-by-step guide
How to check your laptop battery health on Windows
Find out how worn the battery is, whether to replace it and what drains it, in a couple of minutes.
Step 1: get it freeDownload and open Vow Battery Doctor
Install it free for your account, or use the portable version. The Health page checks the battery as soon as it opens, without administrator rights.
Read the health gauge and verdict
The gauge shows how much of its original capacity the battery still holds. The verdict, from Excellent to Replace now, says in plain words whether to act.
Check the findings and the outlook
See whether wear and cycles are normal for its age, any heat warnings, the capacity lost each month and when it will cross 80% and 60%.
Open the Drain page
The live draw is split between your apps over the last minute, with today's top apps below. Close or limit the worst offenders.
Save a report or set a profile
Save the check-up as HTML, CSV or text, then pick a power profile such as Maximum battery to stretch the charge you have left.
Technical details
Battery Doctor at a glance
- Works on
- Windows 10 (1809+) and Windows 11, 64-bit
- Battery data
- Windows' battery driver and powercfg battery report
- Check-up
- Automatic on start, no admin rights
- Opens
- powercfg battery reports, HTML or XML
- Exports
- HTML, CSV and text reports; history as CSV
- Drain history
- Kept 30, 90 or 365 days (90 by default)
- Install
- Per-user, no administrator rights, no account
- Languages
- English
- Theme
- Light, dark or follow Windows: one click to switch
- Version
- 1.0.0, released 7 November 2026
- Publisher
- XTO Pty Ltd (Australia)
FAQ
Questions about Battery Doctor
Is Vow Battery Doctor free?
Yes. The full battery check-up, the verdict and outlook, capacity history, live drain with the apps behind it, today's top 3 apps, power switching and 3 saved reports a day are free. Unlimited, a one-time $4.95 USD payment, adds per-app drain history, automatic profiles, alerts and unlimited reports.
How does it know how worn my battery is?
It reads the battery's design capacity, full-charge capacity, cycle count and temperature straight from Windows' battery driver, and the capacity history from Windows' own battery report. Health is simply what the battery holds today compared with when it was new.
When should I replace my laptop battery?
Around 80% of the original capacity is the usual "worn" mark. The verdict tells you whether yours is Excellent, Good, Worn, Replace soon or Replace now, estimates the month it will reach 80% and shows how much longer a new battery would last.
How does it measure which apps drain the battery?
It reads the battery's own power draw, learns how much your screen and system use at idle, and splits the rest between apps by their CPU time. You see watts right now, today's totals and, with Unlimited, every day's history.
Can it check a different laptop?
Yes. Run powercfg /batteryreport on that laptop and drop the battery-report.html (or the XML version) onto the window, or press Ctrl+O. You get the same diagnosis for that laptop's battery.
How is it different from BatteryInfoView or BatteryBar Pro?
It shows the same driver-level battery details, then adds a plain replace-or-keep verdict, capacity history, per-app drain measured against the battery's own reading with long-term history and CSV, power profiles and alerts, all in one app.
Does it need administrator rights?
No. It reads the battery, the power plans and your apps, and switches plans, as a normal user. Only the optional import of Windows' own per-app energy history asks Windows for permission, once per import.
Is it safe to install?
Yes. It is made and published by XTO Pty Ltd, an Australian company. There are no ads and no bundled software, nothing is uploaded, and it uninstalls cleanly from Windows Settings.
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Done searching. Get Battery Doctor.
Know how worn your laptop battery is, and which apps drain it. Free to use every day, $4.95 once if you ever want Unlimited.
- No ads
- No malware
- No account
- No subscription