CoverBattery Indicator

Adds a configurable battery bar or ring to your flip phone's cover screen edge, indicating your current battery level. Just glance at your cover screen - no need to flip open your phone or squint at the status bar.

Got a full charge? The bar stretches across the entire screen edge.
Battery depleting? So will the length of the bar.
Adjust the thickness from a subtle 1-pixel line to a bold strip, and choose whether it grows from the left, center, or right.

And just when you think a simple bar can only show battery level, try plugging in your charger - you'll love the charging animation. A soft glow sweeps along the bar or rotates around the ring, with several animation styles to set the rhythm.

Two Indicator Styles
- Bar : a clean line along the top or bottom edge (works on any flip phone)
- Ring : a circular arc that wraps around the LED cutout (supported devices below)

Color Styles
- Solid Color : pick any color you like
- Gradient : smooth color transitions across the bar
- Segments : different colors for different battery ranges (green above 50%, red below 20%)
- Merged Segments : blended segment transitions for a smoother look
- Dynamic Color : automatically matches your Material You wallpaper palette

Does it consume battery?
CoverBattery Indicator puts almost 0% load on CPU. It sits silently on screen and only wakes up when the battery level changes. Once updated, it goes right back to sleep. When you turn off the screen, it goes into deep sleep - not even reading battery changes until you wake the display.

PRO Features
Unlock additional indicator styles, color options, and animations with a one-time purchase.

Compatibility
The Bar style works on any flip phone with a cover screen.

The Ring style (which wraps around the LED cutout) is supported on:
- Samsung Galaxy Z Flip 7
- Motorola Razr 40 Ultra / Razr+ (2023)
- Motorola Razr 50 / Razr (2024)
- Motorola Razr 50 Ultra / Razr+ (2024)
- Motorola Razr 60 / Razr (2025)
- Motorola Razr 60 Ultra / Razr Ultra (2025)

Have a flip phone with a LED cutout on the cover screen? Reach out via email - we'd love to add Ring support for your device!

Accessibility Service Disclosure
Android requires CoverBattery Indicator to run as an Accessibility Service to display on the cover screen and lock screen. It does not read, collect, or monitor any personal data, keystrokes, screen content, or browsing activity whatsoever. The service is used exclusively to display the battery indicator.

I'd love to hear from you!
Got feedback, a feature request, or found a bug? Reach out anytime at dev+cbi@ijp.app. I'm an indie developer and I read every message personally. I'll do my best to make CoverBattery Indicator even better for you.

Recent changes:
The very first version of CoverBattery Indicator!