R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Thread Tools Search this Thread
Old 09-24-2004, 07:16 AM   #1
Tech Adept
$h@d0w's Avatar
Join Date: Jan 2004
Location: Singapore
Posts: 114
Default How do you measure the voltage??

I've been reading up on most of the posts on battery maintenance and some recommended that the batteries be discharged and equalised to 0.9v and store them. But my question is how and when do you measure the 0.9v?

After the batteries are equalised to 0.9v (that's what most manufacturers claim) on a equalising tray, the voltage starts increasing the moment it is taken out of the tray and the voltage would not be 0.9v. If I want to measure the batteries and check if the voltage is what the manufacturers claimed to be, do we measure the voltage when the batteries are still in the tray or when they are taken out?

Any comments ??
$h@d0w is offline   Reply With Quote
Old 09-24-2004, 09:31 AM   #2
Tech Addict
rc_square24's Avatar
Join Date: Jan 2004
Location: Vancouver, BC
Posts: 674
Trader Rating: 9 (100%+)

i think u measure it while it is discharging....0.9 cutoff so when it reaches 0.9 during discharge you stop...the voltage will always increase after cutoff so i dont tihnk thats the way you do it.

when i hook my packs to the bulbs i disconnect when the meter reads around 5.4V, thats how i do it...
correct if im wrong
rc_square24 is offline   Reply With Quote
Old 09-24-2004, 09:35 AM   #3
Tech Champion
RCGaryK's Avatar
Join Date: Sep 2003
Location: Champaign, IL
Posts: 7,331
Trader Rating: 3 (100%+)

Also, using a discharge tray will help bring all your cells down to the same voltage. The Novak tray works well because you can set the cutoff from .1-.9 volts per cell.
Site Content Specialist- Surface

Horizon Hobby is on YouTube with hundreds of different videos! Visit us at
RCGaryK is offline   Reply With Quote
Old 09-24-2004, 09:55 AM   #4
Tech Fanatic
calstarjig90j's Avatar
Join Date: Apr 2004
Location: San Diego
Posts: 822
Trader Rating: 2 (100%+)

What I do is use an Integy 30A discharger which supposedly drops the pack down to 5.4 I then use integy / eagle racing saddle pack individual discharge/ equalizer tray which drops to .9 volts for each indvidual cell independently (hence equalizer). There's even a conditioner fuction that drops the pack to .5 volts The voltage will rise once you measure after the pack is taken off. Measuring during the discharge cycle is your best bet if you have no means of an automatic cutoff function.
calstarjig90j is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Measure First, Buy Second >.< shurcooL Electric Off-Road 8 08-06-2008 10:15 AM
NiCD/NiMH Voltage vs Lipo Voltage bryanleec Radio and Electronics 10 02-06-2008 05:08 PM
Someone to measure a truggy cvd K.Copeland Nitro Off-Road 1 08-22-2007 11:31 PM
What is Droop and How do you measure it BGrcracer Electric On-Road 21 06-08-2006 08:32 PM
measure toe in/out independently raceblast Electric Off-Road 7 12-17-2004 06:29 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 02:28 AM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0