Battery Health Checker
A Windows GUI app that checks laptop battery health, shows runtime comparisons, and links to the correct replacement battery using your device's model and service tag.
A dark-mode Windows GUI app (portable — no install required) that checks your laptop battery health, compares current runtime against when the battery was new, and links directly to a replacement battery for your exact device.
Features
- Status badges — charge %, health rating, and charging status at a glance
- Health bar — colour-coded green / orange / red with percentage
- Full Battery Est. — extrapolated total runtime from 100% at current drain rate
- Runtime Over Time — side-by-side bars showing runtime when new vs today vs time lost to degradation
- Find Replacement — links to manufacturer parts page using your battery model number and service tag
- Expandable More Info — battery model, milestones, design capacity, service tag, inline power issues summary, full report
- Run history — logs every run to a CSV and shows it inline
- powercfg report — generates full Windows battery report in the same folder
Download
Windows SmartScreen notice: Because this exe is not commercially signed, Windows may show a warning when you first run it. To unblock it: right-click the downloaded file → Properties → tick Unblock → OK, then run it normally.
The app is portable — just download and run, no installation needed. It will prompt for admin on launch (required for the battery report generation).
Health ratings
| Health % | Rating |
|---|---|
| 80%+ | Good |
| 60–79% | Fair (degraded) |
| Below 60% | Poor — consider replacement |
Replacement battery links
The app detects your laptop manufacturer and battery model and links to the appropriate page:
| Manufacturer | Destination |
|---|---|
| Dell | Dell support via service tag |
| HP | HP shop search |
| Lenovo | Lenovo PC support |
| ASUS / Acer / Microsoft | Manufacturer support |
| Other | Google search for battery model number |