What You Should Know About LIPO Batteries! What Does C Rating Mean? What Is mAh? 

I agree with you about the spektrum packs. The few that I've owned had extremely high internal resistance right out of the box.

Excellent explanation!!

Awesome video! You answered every question I had, which was a lot! Lol. Thanks for such an informative vid. I'm subscribing and sharing. 🤙🏼

Great info! Next episode should cover what's the max safest charging rate on some of these as an example. Thanks Jeff!

Just ordered 2 Liperiair 5000 6s packs for my Raw 580. Can't beat the price. Hope there as good as you say. Thanks for the tips

Fabulous Video, Jeff!!

Thanks Jeff ..Good info !!

Another great and invaluable video for new and even old flyers

Great video, thanks for sharing your knowledge.

Fantastic content as always Jeff - you cover the essential elements that nobody else does! When parallel charging multiple cells at the same time do we multiply the amperage by the number of cells? 1000mah cells @ 1amp x5 so 5 amps? Thanks!

C rating usually divided into 2 numbers, rms/peak nominal(continuous)/max(burst) usually indicated by amperage otherwise known as Current, in the Rc world known as “C” Rating for some reason. The first number usually shows current (amps) output without major drops in voltage, the second number usually indicates the burst amp load with sag but the battery can still recover from. I get why this is so confusing, they can’t just call it a batteries amperage or power because mah or ah or amp hours is already used to measure capacity. Think of it like this voltage is the speed of the river, amperage is the width indicated by c rating and the Mah is the reserve of water that you have.

Been having good luck with my hoovoo batteries. Was wondering on the HRB and MainiX so that’s for clarifying that!

Thank you for the helpful info. Ive been out of the hobby for a long time. I have lipos that are puffy and need to be thrown out. What’s the best way to do this? Thank you!

Nice info for novices in hobby

You should check if you can buy a ESR meter made by Wayne Giles. This device measures the internal resistance of a lipo per cell and gives a C rating for the battery. This C rating is a safe value where you can use it at, without damaging it. For instance, a good conditioned HRB 6s 5000 can be used at 23C, the orange ManiaX at 28C. Now here’s the catch. The temperature of the lipo has huge influence on the C rating. Heating it to 45 degrees Celsius will give a higher C rating. My rule off thumb is, outside temp is C rating. So for instance, in my F5J glider, I use a 3s 1000 pack. Cool the C rating is 25C, preheated to 45 degrees, the C rating is 45C.

Hi, i have a 1300 mah battery and it is rated 30 C. Which means it can provide 39 A of continuous current. But i am using a 50 A esc and my brushless motor only draws 17 Amps maximum. Am i safe to use this setup? and as the esc has higher amp, will it draw 50a from the battery or will it only draw how much current the motor needs (Which is 17A)?