Amps to Ampere-hours Calculator

Convert between Amps (A) and Ampere-hours (Ah) using time duration.

Amps to Amp Hours Calculator

A simple guide to understand battery capacity and convert between Amps (A) and Amp Hours (Ah).

What is Amp Hours (Ah)?

Think of Amp Hours like your battery’s gas tank – it tells you how much energy your battery can store. Just as gallons tell you how much fuel your car can hold, Amp Hours tell you how much electrical charge your battery can hold.

Simple Example: A 100Ah battery can power:

  • A 1-amp device for 100 hours
  • A 10-amp device for 10 hours

Converting Amps to Amp Hours

Here’s the simple formula you need:

Amp Hours = Amps × Hours of Use
  • Amps = How much power your device uses
  • Hours = How long you’ll use the device
  • Amp Hours = The battery capacity you need

Comparing Different Batteries

When comparing batteries with different voltages, we use Watt Hours:

Watt Hours = Amp Hours × Voltage

Quick Comparison

12V Battery with 100Ah

100Ah × 12V = 1200Wh

24V Battery with 50Ah

50Ah × 24V = 1200Wh

Both batteries store the same energy, just in different ways!

Real-Life Examples

Sizing a Battery for Your Device

Let’s say your device needs:

  • 2 amps of power
  • Runs for 5 hours

You’ll need a battery with: 10 Amp Hours

2 Amps × 5 Hours = 10 Amp Hours

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