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Mah (milliamp Hours) Explained!

By Tony, Mar 11, 2013 | |
  1. Tony
    As most of you know, things come in waves. From motor KV, to voltage, and now, MAH that a battery can sustain. Because of this, I have decided to create a quick article to try and explain what MAH means when you see it on a battery.

    Lets talk about one of the most popular batteries out there, the 3s 2200mah battery that is used in most 450 sized heli's. Now, just to be clear, voltage has NOTHING to do with the mah. Well it does, but it doesn't. I will explain below.

    When you are talking about MAH, you are talking about the discharge rate that the battery can sustain over a given amount of time. Again, we are going to use the 2200mah as an example. In this example, 2200mah could equal 2.2ah, or 2.2 amp hours. This means the battery can sustain a draw of 2.2 amps for one hour. Yup, it's as simple as that.

    Just to be clear, there are 1000ma in 1 amp. This is how I got to the 2.2 amps out of 2200mah. Just divide 2200/1000 to get to 2.2 as I explained in the How To Match Motor | Battery | ESC.

    I hope this helps some of you out that were unclear on what mah stood for. As always, if you have any questions, all you have to do is ask. If there is something wrong with this article, let me know and I will fix the issue.

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