Lens Battery
A floating battery indicator for Android that wraps an arc around your camera lens. See your battery level at a glance — without unlocking your phone.
A floating battery indicator for Android that wraps an arc around your camera lens. See your battery level at a glance — without unlocking your phone.
Features
Lens Overlay
A circular arc drawn around your camera lens shows battery level as a sweep angle. Floats over every app — always visible when you need it.
Live Battery Level
Reads your current battery percentage and renders it as both the arc sweep and a number at the centre. Updates automatically every 30 seconds.
Drag to Position
Drag the overlay in the preview canvas to sit it exactly over your camera cutout. Use the 1 px d-pad for final fine-tuning and lock it in with Save.
Adjustable Size
Set width and height independently from 20 to 200 px. Enable aspect-ratio lock to resize proportionally — useful for oval or punch-hole lenses.
Color Themes
Choose from Green, Blue, Amber, Coral, or White. The arc automatically turns red when battery drops to 15% or below, regardless of your chosen theme.
Solid or Dashed Arc
Switch between a clean solid arc or a segmented dashed style with 20 equal segments — giving the overlay a more technical, minimal look.
Background Fill
Add a background behind the arc: none, black, dark grey, or white. Useful on busy wallpapers where the arc alone would blend into the background.
Pricing
Free
$0
No account needed · No time limit
All features included
$0 forever
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Setup
Grant "Display over other apps" Permission
Open Lens Battery and tap the overlay toggle. Android will prompt you to grant Display over other apps permission — this is required for the floating overlay to appear on top of other apps and your home screen.
Allow Notifications
Enable notifications for Lens Battery. The overlay runs as a foreground service and requires a persistent notification to keep running when the app is in the background.
Disable Battery Optimisation
Go to Settings → Apps → Lens Battery → Battery and select Unrestricted. This prevents Android from killing the overlay service when the screen has been on for a while.
Position the Overlay over Your Lens
Back in the app, drag the circular indicator in the preview canvas until it sits over your camera cutout. Use the d-pad buttons for 1 px nudges in any direction. Adjust size with the sliders or the fine-size controls until the ring fits snugly around your lens.
Save and Enable the Overlay
Tap Save to commit your position, size, and style settings. Then tap the overlay toggle to turn it on. The battery ring will now float over your camera lens across all apps until you turn it off.