Battery Calculator & Converter

Useful tools for batteries.

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Battery Calculator & Converter is a handy tool designed to simplify battery planning and comparison. Easily calculate battery runtime, capacity, and energy requirements across various chemistries and sizes. Convert between mAh, Wh, voltage, and other key metrics in seconds. Whether you're designing projects, troubleshooting devices, or exploring power options, this app provides accurate results and intuitive functionality—perfect for hobbyists, engineers, and anyone working with batteries. With our "Battery Calculator & Converter" app you can do the following: - Battery Runtime with Peukert: Estimate realistic battery runtime from bank capacity, load, efficiency, and Peukert exponent. - Cranking Amps vs Temperature: Estimate available cranking amps at current temperature and check starting margin against starter motor draw. - Alternator / Charger — Time to Full: Estimate time for alternator or charger to bring battery from current to target state-of-charge. - Inverter Runtime + Surge Check: Calculate runtime at continuous inverter load and verify surge demand versus battery bank and C-rate limits. - Battery SoC from OCV: Estimate battery state-of-charge from rested open-circuit voltage, considering chemistry and temperature where applicable. - Solar Recharge Time — Aux Battery: Predict hours or days needed for solar array to recharge auxiliary battery to target state-of-charge. - Ah ↔ Wh Converter: Convert between amp-hours and watt-hours using system voltage, with presets for common DC battery systems. - DC-DC Charger Sizing: Choose an appropriate DC-DC charger current based on alternator rating, vehicle base loads, and battery size. - Series–Parallel Bank Planner: Plan series-parallel battery configurations to reach desired system voltage and capacity with total Ah and Wh. - Voltage Drop & Wire Gauge (DC): Calculate DC voltage drop over cable length and recommend suitable wire gauge for allowed loss.

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The developer, Arsosa Network Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Arsosa Network Inc.
    Size
    • 34.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 13.0 or later.
    • iPhone
      Requires iOS 13.0 or later.
    • iPad
      Requires iPadOS 13.0 or later.
    • iPod touch
      Requires iOS 13.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © Arsosa Network Inc.
  • Developer Website
  • Privacy Policy

    • More by Arsosa Network Inc.

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