Battery Capacity & Lifetime
Explore battery runtime with the original Peukert calculator, discharge percentages, seven exponent choices and current comparisons.
Your app workspace
- Rated capacity, hour rating and load-current inputs
- Seven Peukert exponents and five discharge percentages
- Runtime, modeled capacity and worked examples
- Local input restoration and offline preparation
Designed for a browser on iPhone, iPad, Android and desktop. Add it to your Home Screen and prepare its files for offline use. Local work is stored on the device you use.
Actual Web App preview. Your inputs, projects or progress are saved in your own workspace on this device.
Get Battery Capacity & Lifetime
$1.99
One-time payment. No account or sign-in code required.
No subscription. No renewal charges.
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Apps FAQ — purchases, installation, recovery and AI support →
Learning and planning tools for educational use.
Battery calculations are estimates. Confirm performance against the manufacturer’s data.