AmpHours: Battery Runtime
AmpHours: Battery Runtime is made and published by Tanner Osterkamp. AppBrain is an independent app data site and isn't affiliated with Tanner Osterkamp. The app name, icon, screenshots and description belong to Tanner Osterkamp and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- November 8, 2026
- Size
- 747.0 KB
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Store listing
By Tanner Osterkamp, from the App Store
Description by Tanner Osterkamp Written by the developer, not by AppBrain. Click to read.
Enter the battery capacity in amp-hours, the voltage, a load in watts or amps, and your efficiency. AmpHours shows runtime in hours and minutes, battery draw, power and usable energy. Add a use limit so a lead-acid or lithium battery is never counted down to zero. Open Advanced to apply a Peukert exponent and a rated discharge time when the load is heavy.
A Recharge card turns the usable amp-hours into a refill time for your charger.
Free:
- Runtime calculator with watts or amps, efficiency, use limit, Peukert
- Recharge time for any charger
- Two saved batteries
AmpHours Pro, one purchase, no subscription:
- Battery bank builder: series and parallel cells, with volts, amp-hours and watt-hours
- Unlimited saved batteries
Private by design: AmpHours works offline, needs no account, and collects nothing.
AmpHours gives estimates from the numbers you enter. Real batteries vary with temperature, age and chemistry. Do not use it as a safety limit for medical devices, navigation or anything that must not lose power.
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 747.0 KB
- Content rating
- Everyone
Technologies used by AmpHours: Battery Runtime
Releases
Updates seen on the App Store- Version
- 1.0.0
- Launched
- November 2026
No changelog data
Rankings
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About the app and developer
About AmpHours: Battery Runtime
AmpHours: Battery Runtime is an utilities app developed by Tanner Osterkamp.
What is the rating of AmpHours: Battery Runtime?
AmpHours: Battery Runtime has no ratings yet.
Is AmpHours: Battery Runtime free?
AmpHours: Battery Runtime is free. The app size is 747.00 kB. The latest version available is 1.0.0. The last update was on November 8, 2026.
What are the requirements for AmpHours: Battery Runtime?
The app has a content rating of Everyone. The app has been available on the App Store since November 2026.
Developer information for Tanner Osterkamp
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