LiPo ESR Meter Mark II

Updated version of the industry standard ESR Meter - now check every cell simultaneously!
Ships today if ordered in the next

7 available




For years, the ESR Meter has been the de facto standard for judging the quality of lithium battery packs. With the new Mark II model, it's better than ever!

From tiny single cells all the way up to a 6S 25,000mAh multirotor pack, this meter is ready to instantly provide objective data to let you measure and track the health of your packs. Internal resistance is a crucial aspect of a battery's performance, affecting the rate at which it can safely be charged and discharged. The ability to measure internal resistance enables you to compare batteries from different manufacturers with confidence rather than relying on often-suspect C ratings.

The ESR (Equivalent Series Resistance) meter gives you just that ability - powered by the battery itself, the meter provides the internal resistance of an entire pack to a resolution of 0.3 milliohms or each individual cell to a resolution of 0.04 milliohms. With the added ability to enter the capacity of the pack being measured, you can now also find out the real C rating of the battery, based on the measurable resistance.

With the updated design letting you connect your battery's balance lead directly to the meter, you can check every cell simultaneously, making the ESR Meter a more useful tool than ever.



Dimensions 130x100x45mm
Input Voltage 1S-6S LiPo
Weight 250g


Customer Reviews (1)

The gold standard for IR testing!Review by ggimlick
I had the original ESR meter and recently upgraded to the new Mark II version. I had written the manufacturer several months ago with some suggestions to things I'd like to see in a meter and got a response telling me I'd be very happy with their next version because it addressed all of my "wants" and more.

It think it's the best meter I've used and as far as I know, I've tested every competing device that claims to test IR. This is far and away the best of the lot. Accuracy and consistency is great. Support for questions is excellent. I have six testing devices right now and five are in the storage cabinet because this is the one I use daily. (Posted on 8/14/2019)

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