Battery Runtime Calculator

Easily calculate the estimated runtime of your battery for various devices. Whether you are using a 12V 100Ah battery for camping or checking your inverter runtime, the Battery Runtime Calculator helps you find the answer instantly.

Key Features:
- Calculate battery life based on capacity (Ah) and voltage (V)
- Quick load presets for common devices (laptop, mini fridge, TV, fan, CPAP, etc.)
- Advanced inputs: Inverter efficiency and usable battery capacity
- Supports multiple battery types: LiFePO4, Lithium-ion, AGM, Lead-acid, Custom
- Works completely offline without internet
- Share your calculation results with an easy-to-read image card

Find out exactly how long your battery will last for your next outdoor trip, off-grid living, or emergency backup. Start calculating your Ah to hours and battery inverter capacity now!