<p>It's a measurement of <a href="https://www.gettitanpower.com/blogs/news/short-and-long-answers-what-is-the-c-rating" rel="nofollow noreferrer">how fast the battery releases power</a>.</p>

<p>Mathematically, it's the number of times the battery can discharge in a single hour without damaging the battery / overheating.</p>

CC BY-SA 4.0
2020-04-14T20:24:36.813Z
2020-04-14T20:24:36.813Z
anonymous2
<p>It tells you how fast the battery can be discharged. The max amp draw is calculated with <code>capacity (Ah) * C-rating</code>.</p>

<p>For example, a 1500mAh 75C battery can handle 112,5A max.</p>

<p>A higher C-rating reduces the risk for voltage sag, and a battery with too low C-rating can be damaged if you try to draw too much current.</p>

CC BY-SA 4.0
2020-04-14T20:25:42.067Z
2020-04-21T04:39:48.067Z
2020-04-21T04:39:48.067Z
Hannes Hultergård
<p><a href="https://oscarliang.com/lipo-battery-c-rating/" rel="nofollow noreferrer">What is a C-Rating on a LiPo Battery?</a></p>
<blockquote>
<p>C-Rating is an indicator of the continuous discharge rate of a LiPo. It allows users to easily calculate the maximum constant current you can draw from the LiPo pack safely without harming the battery.</p>
<p>For example, if you have a 3S 1000mAh 20C LiPo pack, your safe max current draw would be 1000mAh x 20C = 20A.</p>
</blockquote>

CC BY-SA 4.0
2020-04-14T20:25:02.883Z
2020-04-14T20:25:02.883Z
2020-06-18T08:37:30.297Z
TheSimpliFire
<p>The C rating is a multiplier that dictates discharge. You can figure out the maximum theoretical discharge by multiplying the C rating by the capacity. For example an 80C, 1300mAh LiPo can output 80*1.3 = 104 Amps. There is no consensus as far as I am aware as to what the letter C stands for.</p>

<p>It is worth noting that C rating is dubious - comparing the C rating between different manufacturers is unlikely to produce useful results as to which battery is better.</p>

CC BY-SA 4.0
2020-05-02T19:48:12.690Z
+1. I've never realized "C" in that phrase might have an actual meaning
3k-
CC BY-SA 4.0
2020-04-14T20:25:49.343Z
Ha beat me to it. ;) good answer
anonymous2
CC BY-SA 4.0
2020-04-14T20:27:34.427Z
@anonymous2 Thank, you too :)
Drones and Whatnot
CC BY-SA 4.0
2020-04-14T20:24:28.517Z
2020-04-14T20:24:28.517Z
Drones and Whatnot
<p>I see LIPO batteries specify a C rating on the label. </p>

<p><a href="https://i.sstatic.net/SILUT.jpg" rel="noreferrer"><img src="https://i.sstatic.net/SILUT.jpg" alt="LIPO battery C rating"></a></p>

<p>What does that stand for and how does it affect the performance of the battery?</p>

<lipo-batteries><batteries>
What does the C rating on a LiPo battery mean?
Daniel Ballinger
# What does the C rating on a LiPo battery mean?

(Asked by: username_0 on 2020-04-14)

I see LIPO batteries specify a C rating on the label.

[![LIPO battery C rating](https://i.sstatic.net/SILUT.jpg)](https://i.sstatic.net/SILUT.jpg)

What does that stand for and how does it affect the performance of the battery?

**Tags:** lipo-batteries, batteries


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## 4 answers

### Answer by username_4 on 2020-04-14. Score: 9 | Accepted answer

The C rating is a multiplier that dictates discharge. You can figure out the maximum theoretical discharge by multiplying the C rating by the capacity. For example an 80C, 1300mAh LiPo can output 80\*1.3 = 104 Amps. There is no consensus as far as I am aware as to what the letter C stands for.

It is worth noting that C rating is dubious - comparing the C rating between different manufacturers is unlikely to produce useful results as to which battery is better.

> **Comments:**
> **username_1**: Ha beat me to it. ;) good answer  
> **username_4**: @username_1 Thank, you too :)  
> **username_5**: +1. I've never realized "C" in that phrase might have an actual meaning  

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### Answer by username_1 on 2020-04-14. Score: 3

It's a measurement of [how fast the battery releases power](https://www.gettitanpower.com/blogs/news/short-and-long-answers-what-is-the-c-rating).

Mathematically, it's the number of times the battery can discharge in a single hour without damaging the battery / overheating.


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### Answer by username_2 on 2020-04-14. Score: 2

It tells you how fast the battery can be discharged. The max amp draw is calculated with `capacity (Ah) * C-rating`.

For example, a 1500mAh 75C battery can handle 112,5A max.

A higher C-rating reduces the risk for voltage sag, and a battery with too low C-rating can be damaged if you try to draw too much current.


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### Answer by username_3 on 2020-04-14. Score: 1

[What is a C-Rating on a LiPo Battery?](https://oscarliang.com/lipo-battery-c-rating/)

> C-Rating is an indicator of the continuous discharge rate of a LiPo. It allows users to easily calculate the maximum constant current you can draw from the LiPo pack safely without harming the battery.
>
> For example, if you have a 3S 1000mAh 20C LiPo pack, your safe max current draw would be 1000mAh x 20C = 20A.


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