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GoolRC Smart Digital Battery Capacity Checker for LiPo LiFe Li-ion NiMH NiCd Battery

GoolRC Smart Digital Battery Capacity Checker for LiPo LiFe Li-ion NiMH NiCd Battery

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This RC cell meter-7 digital battery capacity checker is able to be used for LiPo LiFe Li-ion NiMH Nicd batteries.

Battery balancer
Battery discharger
Battery capacity checker

Input cells 2-7 cells 2-7 cells 2-7 cells 4-7 cells 4-7 cells
Total Voltage
Total cell battery capacity(0-99%) X X
Individual Battery cell voltage X X
Lowest cell voltage X X
Highest cell voltage X X

Voltage Difference Between

Highest and lowest cell voltages


Package Information:
Package size: 10.5 * 8 * 2cm / 4.2 * 3.2 * 0.8in
Package weight: 56g / 2oz
Gift Box Package

Package List:
1 * Smart Battery Meter

Customer Questions & Answers

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0 votes

Can this be used to measure a single lithium ion cell? If so, which pin connections would you need to make?

  • Stay AWAY from this. Its not accurate by any means. I charge brand new batteries to the full, and it shows 60% charge. My HiTech meter shows 100% and a friend at the field has a Futaba meter that also shows 100%. I tossed this in the garbage (lesson learned)

    By Tim on April 22, 2018

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0 votes

Does this give you percentage reading of the the total pack capacity?

  • Yes it will show the total votake of the battery

    By Russell on April 11, 2018

0 votes

i have 2c lipo traxxas id batteries. (one connector) The connector is different. What exactly will i need to plug in?

  • Need to use the joint balance charger is connected to the measuring appliance connector.

    By Didrika on March 22, 2018

0 votes

Will this check capacity and voltage levels for 1 single Li-ion 3.7v cell ?

  • Yes !

    By William Wilcox on March 18, 2018

0 votes

will it check lead acid batteries

  • No. Unless the battery has a compatible balancing lead (I've never seen one on a lead acid battery).

    By Jason on March 11, 2018

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0 votes

Can i use this with my 24v 50ah lifepo4 battery on my golf cart which has 1hp motor?

  • If you have a JST-XH balance plug already wired to each cell in your battery, then yes it should work, if not, no.

    By S9plus on March 1, 2018

0 votes

I just flew two 3.7v, 380mAh batteries and now both check out at 4.190v and 99%. Does this merely check capacity or also charge level?

  • this unit gives both battery capacity and cell voltage level,the 4.190,cell voltage is at full charge for a 3.7v battery

    By William H. on February 27, 2018

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0 votes

What kind of connector does it need for nicd and nimh input port and do you have one ?

  • I just connect the balance charge cable from my LiPo batteries to the checkers pins to check the battery. You can slide the connector from the battery onto the pins. LiPos are the only battery I have used with this battery checker. I have not used them with nicad or nimh batteries.

    By HappyCamper on February 7, 2018

0 votes

just recieved tester no way to attach to my traxxas lipo batts. as they have no balance connector only the big 2 wire plug hook up what can I do?

  • You might need something like the Traxxas 2938 adaptor. Hope this helps.

    By Jr. on December 21, 2017

0 votes

I am thinking of using this on my large LiFe cells at home to easily spot a straggler. So is there a name for the connector type?

  • You will need to make your own adapter like I did. It only accepts the small connectors that you would find on a servo. The hole resembles a receiver with 3 pins.

    By RC-NUT on December 9, 2017

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Customer Reviews

Average Rating:


based on 43 Customer Reviews

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  • By GLM in VA

    December 7, 2017

    I was told at my local hobby shop that I needed a battery checker since I had several different types of LiPo batteries as well as some older NiCads laying around. I didn't want to break the bank buying one. I'm new to the hobby scene that is using LiPo batteries, so when I received this unit thought that I should come with a cable to plug into that set of male pins on the end. Went to local hobby shop and the told me that the unit looked just like thier more expensive unit and appeared to be same quality. Then they showed me how the variouis LiPo batteries hook up right to the tester using the battery's balance connector. Duhhhh, boy did I feel stupid. My bad as my son would say. Works great, now that I know how to use it. So other than maybe a bit more descriptive set of directions for newbies, this is a fantastic buy if you are in the market for a battery tester in your RC bag of tools.

    Is this helpful? (0) (0)

  • By Josh

    December 6, 2017

    The nicest feature about this unit is the percentage display. It is the reason I bought it. Whether you are checking a 2, 3, 4, or more cell LiPo battery you can compare the same number. This is easier than remembering what voltage you should have for each cell count. You could look at individual cell voltage but the percentage gives you a picture of the entire pack. I check voltage every time my plane is on the ground. I never take off under 80%. It quickly gives you a feel for how much of the battery you are using per flight time. cons - the pins that the balance plug go into feel weak, I'm worried they will break soon, but so far no problems.

    Is this helpful? (0) (0)

  • By Luke W.

    January 17, 2018

    A good product for the price and easy to use. There's no reason not to have one of these if you have RC gear.

    Is this helpful? (0) (0)

  • By Auto

    January 17, 2018

    Very good. Must have if you have a lot of Li-Po batteries to maintain.

    Is this helpful? (0) (0)

  • By mgc

    January 16, 2018

    Once you finesse the plug on this is great. It took a few tries and I honestly didn't think it worked until I finally got it connected correctly and voila. Works great.

    Is this helpful? (0) (0)

  • By Shane McKinney

    January 10, 2018

    good. I like it.

    Is this helpful? (0) (0)

  • By Jacob Townsend

    December 31, 2017

    Works great with LiPos, but only good with 7 cell NiMH and NiCD batteries. So 9.6 to 10.4 cannot be measured with this device.

    Is this helpful? (0) (0)

  • By T.J.

    December 21, 2017

    Good product for the money. Problem receiving item, seller reordered item and was helpful in correcting problem.

    Is this helpful? (0) (0)

  • By jdlyn2000

    December 15, 2017

    I use this product for many lipo batteries and it seems to be very accurate as far as I can tell. AS far as durability, its electrical and plastic, so probably not all that durable. It is rugged enough for its intended purpose and a bit more. Honestly you can't beat the price either. Shipping was slow, about a month.

    Is this helpful? (0) (0)

  • By Francisco Ortiz

    December 14, 2017

    Very handy if your into electric RC racing

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  • By RC-NUT

    December 13, 2017

    This works great. My only complaint is you need to make an adapter if you want to test NiMH or NiCD batteries. It only accepts a receiver style plug. It's easy to use and I'm glad I bought it.

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  • By Keith D.

    December 13, 2017

    Item delivered on time, was as described,

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  • By S***a

    December 12, 2017

    Very handy for checking battery capacity between flights and races..

    Is this helpful? (0) (0)

  • By 3xPSUAlum

    December 12, 2017

    The battery checker works fine and calibrates fairly closely with my digital multimeter. The confirmation beeps are a little loud. Very acceptable at the price.

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  • By s***c

    December 11, 2017

    nice battery checker

    Is this helpful? (0) (0)

  • By 83cj7jeeper

    December 6, 2017

    What can i say it works and seems to be accurate enough for what i need

    Is this helpful? (0) (0)


    December 2, 2017

    nifty/handy checker..plenty of info/displayed available

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  • By r***a

    November 16, 2017

    A++++ very fast delivery as described super happy 😁

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  • By j***5

    August 1, 2017

    Quick delivery, excellent packaging.

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  • By m***s

    April 11, 2017

    Nice quality products and fast shipping!

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