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 16 reviews
88%
(14)
6%
(1)
6%
(1)
0%
(0)
0%
(0)
-
-.-.
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
G.R.
A+ Rating

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

T
T.B.
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.

M
M.H.
Great tool for lipo battery evaluation and management

Love the features and ease-of-use of the new Mark II unit. Totally happy with it. One very minor point, when entering battery capacity, it only accepts increments of 100 mAh where many batteries are 850 mAh for example so you have to go to 800 or 900.

J
J.D.
LiPo ESR Meter Mark II

Very useful instrument for monitoring and tracking the overall health of your precious LiPo battery packs. The Mk II version is a nice upgrade from the Mk 1 Version. Both models show accurate numbers.

Customer Reviews

Based on 16 reviews
88%
(14)
6%
(1)
6%
(1)
0%
(0)
0%
(0)
-
-.-.
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
G.R.
A+ Rating

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

T
T.B.
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.

M
M.H.
Great tool for lipo battery evaluation and management

Love the features and ease-of-use of the new Mark II unit. Totally happy with it. One very minor point, when entering battery capacity, it only accepts increments of 100 mAh where many batteries are 850 mAh for example so you have to go to 800 or 900.

J
J.D.
LiPo ESR Meter Mark II

Very useful instrument for monitoring and tracking the overall health of your precious LiPo battery packs. The Mk II version is a nice upgrade from the Mk 1 Version. Both models show accurate numbers.

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