How to Measure Battery Capacity

Measuring Battery Performance—Here’s How

There are several ways to measure battery capacity. Which method is best for you depends on how accurately you want to measure and how often you plan to take measurements.

• To check the capacity of your batteries, a battery charger with various options is a good choice. At around 55 euros, the device is slightly more expensive than a basic battery charger, but it also allows you to measure battery capacity, discharge batteries, and, of course, recharge them.
• If you only want to occasionally measure the capacity of slightly larger batteries, such as a laptop battery, you can find handy little measuring devices in the form of USB flash drives that cost around 10 euros.
• If you need very precise readings and frequently have to determine the remaining capacity of larger batteries, it’s worth investing in a slightly more professional digital power meter, which you can find at specialty stores for around 35 euros.
• You can download the AkkuLine Battery Tool from us completely free of charge; it also allows you to conveniently check the condition of your laptop battery.