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Electric Stunt => Gettin all AMP'ed up! => Topic started by: Dennis Toth on January 08, 2021, 09:01:12 AM

Title: LIPO cell checker - what device?
Post by: Dennis Toth on January 08, 2021, 09:01:12 AM
Guys,
I'm looking for a reliable LIPO cell checker that would be able detect if a cell is weak or dead. I have a watt meter but this checks the total voltage not the individual cells. What is a good device to purchase?

Best,    DennisT
Title: Re: LIPO cell checker - what device?
Post by: Dennis Nunes on January 08, 2021, 10:32:16 AM
Guys,
I'm looking for a reliable LIPO cell checker that would be able detect if a cell is weak or dead. I have a watt meter but this checks the total voltage not the individual cells. What is a good device to purchase?

Best,    DennisT
Hi DennisT,

I bought this battery checker on eBay a year ago. It works pretty good, will check individual cell voltage and was inexpensive. https://www.ebay.com/itm/Digital-Battery-Capacity-Checker-RC-7-Cellmeter-For-LiPo-LiFe-Li-ion-Nicd-NiMH/353265760304?hash=item524047b830:g:0z8AAOSwgEJfpQIU (https://www.ebay.com/itm/Digital-Battery-Capacity-Checker-RC-7-Cellmeter-For-LiPo-LiFe-Li-ion-Nicd-NiMH/353265760304?hash=item524047b830:g:0z8AAOSwgEJfpQIU)

Dennis





Title: Re: LIPO cell checker - what device?
Post by: ericrule on January 08, 2021, 01:41:06 PM
Yep Dennis;
That's the one I imported when I owned RSM Distribution. It works quite well. Because they were inexpensive I used to keep one in the shop and one in my flight box. At the field having it and using it to check every battery before I plugged it into the ESC saved me a couple of times from plugging a used battery into the model (yes, I know we are supposed to mark the three batteries we take to the field 1-2 & 3 so we don't mix them up. Some of us are just too smart, too old or simply too stupid to take our own advice).
Title: Re: LIPO cell checker - what device?
Post by: Steve Tomlinson on January 08, 2021, 02:08:38 PM
There is a small one that I use for my RC Lipos from HOBBY KING    it costs about $4 and all the guys at the field use this model
Title: Re: LIPO cell checker - what device?
Post by: jfv on January 08, 2021, 02:11:21 PM
I bought several over the summer, some a bit pricy, with little success with consistency.  Last one I bought seems to be the best.  Better than the one I bought for about $40.  Cell Meter 8.  Similar, if not the same as the one Dennis showed.

https://www.amazon.com/gp/product/B073W4MDHC/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Title: Re: LIPO cell checker - what device?
Post by: Fred Underwood on January 08, 2021, 02:44:20 PM
Similar to the others posted and $4.49.  I have a couple and friends also have them.  They work fine.  None of these inexpensive meters are overly accurate for each cell, but certainly can spot a significant difference.  % charge is useful as noted.

http://www.valuehobby.com/battery-capacity-checker-3820.html
Title: Re: LIPO cell checker - what device?
Post by: Crist Rigotti on January 08, 2021, 08:48:04 PM
Get the Cellmeter 8!  Less than 12 bucks.

https://www.ebay.com/itm/CellMeter-8-servo-tester-Battery-Capacity-Checker-Servo-Tester-RC-With-Backlight/383880063681?hash=item596108eac1:g:TXUAAOSw3Vpf6ves
Title: Re: LIPO cell checker - what device?
Post by: Alexey Gorbunov on January 15, 2021, 09:00:17 AM
I use
https://aliexpress.com/item/32825202320.html?spm=a2g0s.9042311.0.0.365f33edLn3cJm&_ga=2.223497115.1803518662.1610726605-1256051164.1595521975
Title: Re: LIPO cell checker - what device?
Post by: Ken Culbertson on January 15, 2021, 09:18:08 AM
Hi DennisT,

I bought this battery checker on eBay a year ago. It works pretty good, will check individual cell voltage and was inexpensive.
I used the same one.  It always agreed with my charger so I suspect it was accurate (of both were crap - possible).  For some reason the last cell always registered lower.  I never investigated why but the same reading was there when I put it on the charger.