Welcome to our Forum, Guest.
If this is your first visit, be sure to check out the Help/FAQ - Frequently Asked Questions. You may have to Login or Register, before you can post: click the register link below to proceed. To start viewing messages, select the forum that you want to visit from the selection below.


Welcome to the Avon RC Flyer's Forum.


Random Quote: Everyone has a photographic memory, some just don't have film.

Gallery Home Page
 
NEWS:
See our new field weather station!
  Home Weather Network Avon Field Weather Field Wind Speed Field Orientation Gallery Home Gallery Pictures MembersLoginRegisterAwardsQuizzesGuestbookContactHelp  
 
Page Index Toggle Pages: 1
Send Topic Print
LiPo Info a la MAAC (Read 5,731 times)
 
waverider
Aerobatic Pilot
The Great White Flounder
Your a StarYour a StarYour a StarYour a Star
Offline


Frozen Solid

LastOn: Aug 7th, 2020
Join: Nov 8th, 2010

Posts: 499
Reputation: 0

Edmonton
Gender: male
Zodiac sign: Gemini
Awards: 1
Post 2Yr Award

Mood:

Show the link to this post LiPo Info a la MAAC
Mar 5th, 2013 at 6:19pm
 
Just thought this should be on the website
USA Seller of unit below http://www.progressiverc.com/esr-meter.html

autoranging internal resistance measuring unit
http://www.rcgroups.com/forums/showpost.php?p=20038311&postcount=249
It measures the effective resistance by applying a pulse load of controlled constant current load of 16A to the pack, measuring the voltage just before the start of the pulse and again just before the end of the pulse. It then does the maths of subtracting the last figure from the first figure, divides the answer by 16 to give result in ohms and divides that by 1000 to display the answer in milliohms.
I have compared the results with those from chargers and generally they vary by up to 150% more. The meter agrees with the figures from actual loading results when power testing whereas the charger results are higher, I think because of the endothermic effect of charging and because most chargers do not use a 4 wire Kelvin connection so that the connectors are included in cell figures.
The unit will measure any chemistry provided that the pack is between 7V and 30V and the cell voltage is less than 5V.

disco on batt temperature
http://www.rcgroups.com/forums/showthread.php?t=1323465&highlight=lipoli+object+...

Back to top
« Last Edit: Mar 6th, 2013 at 10:16am by waverider »  

Brian H
"I see no ships"
 
IP Logged
 
Ramzz
3D Pilot
Faster Than A Speeding Lugi!!!
Your a StarYour a StarYour a Star
Offline


Forum User

LastOn: May 4th, 2021
Join: Sep 5th, 2011

Posts: 234
Reputation: 1

Petitcodiac, NB
Gender: male
Zodiac sign: Taurus
Awards: 1
Jet Pilot Award

Mood:

Show the link to this post Re: LiPo Info a la MAAC
Reply #1 - Mar 6th, 2013 at 6:15pm
 
That looks like a very handy tool for assesing lipo's rather than cycling/capacity checks.  Would make a great lie detector test.
Back to top
  
 
IP Logged
 
administrator
Yabb Administrator
Rocker 148 !!
Your a StarYour a StarYour a StarYour a StarYour a Star
Offline


Zoom Zoom!!

LastOn: Jan 19th, 2024
Join: Apr 11th, 2009

Posts: 850
Reputation: 0

Windsor, Nova Scotia
Gender: male
Zodiac sign: Leo
Awards: 2
Post 2Yr AwardAvon RC flyers Member

Mood:

Show the link to this post Re: LiPo Info a la MAAC
Reply #2 - Mar 6th, 2013 at 7:01pm
 
This Topic was moved here from General Board by administrator.
Back to top
  

>>>>Bruce<<<<
WWW  
IP Logged
 
Page Index Toggle Pages: 1
Facebook Twitter Google Digg del.icio.us reddit Linked in MySpace StumbleUpon Yahoo
Send Topic Print

Link to This Topic