LiPo ESR Meter Mark II
LiPo ESR Meter Mark II
LiPo ESR Meter Mark II
LiPo ESR Meter Mark II
LiPo ESR Meter Mark II
LiPo ESR Meter Mark II
LiPo ESR Meter Mark II
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LiPo ESR Meter Mark II

AC-ESR2
Updated version of the industry standard ESR Meter - now check every cell simultaneously!
$149.99

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

Customer Reviews

Based on 18 reviews
89%
(16)
6%
(1)
6%
(1)
0%
(0)
0%
(0)
R
Russell Jensen
Great Little Meter

Just started using this meter. So far I really like it and it is very useful.

W
Willie Hill Jr
Interesting Product

I watched a YT video and decided to buy the meter. Although it's not something I'm going to use "everyday", it has a place in my rc modeling toolkit. I checked "all" of my batteries (sideline a few) and took it to the flying field and checked my buddies batteries. Of course they were SHOCKED to learn the actual C rating of their expensive batteries (me too!). BTW: I checked my EOS Sentry battery checker against the ESR Meter and both read the same figures. The confirmation between the two meters was another plus I received from buying the meter. Now I can trust the EOS meter readings at the field.

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Seems to be a very useful tool

The reason I bought this is to check the accuracy of my eye charger and to have access to a true internal resistance ESR meter would definitely recommend it

G
George Royal
A+ Rating

Quality products and fast shipping. I have been a customer for six years.

T
Ted Brindle
Great Tool for the Electric flyer

Easy to use to check my batteries. Just be careful to make sure you plug in the power lead BEFORE you plug in the balance connector. One thing it confirms is that the batteries are really over rated in their C values. My new 4S 3200 50C smart batteries are reading 18C using this meter.

Customer Reviews

Based on 18 reviews
89%
(16)
6%
(1)
6%
(1)
0%
(0)
0%
(0)
R
Russell Jensen
Great Little Meter

Just started using this meter. So far I really like it and it is very useful.

W
Willie Hill Jr
Interesting Product

I watched a YT video and decided to buy the meter. Although it's not something I'm going to use "everyday", it has a place in my rc modeling toolkit. I checked "all" of my batteries (sideline a few) and took it to the flying field and checked my buddies batteries. Of course they were SHOCKED to learn the actual C rating of their expensive batteries (me too!). BTW: I checked my EOS Sentry battery checker against the ESR Meter and both read the same figures. The confirmation between the two meters was another plus I received from buying the meter. Now I can trust the EOS meter readings at the field.

-
---- ----
Seems to be a very useful tool

The reason I bought this is to check the accuracy of my eye charger and to have access to a true internal resistance ESR meter would definitely recommend it

G
George Royal
A+ Rating

Quality products and fast shipping. I have been a customer for six years.

T
Ted Brindle
Great Tool for the Electric flyer

Easy to use to check my batteries. Just be careful to make sure you plug in the power lead BEFORE you plug in the balance connector. One thing it confirms is that the batteries are really over rated in their C values. My new 4S 3200 50C smart batteries are reading 18C using this meter.

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