lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Extreme DC!
Extreme DC! Extreme Electric Golf Carts!



Post New Thread  Reply
Thread Tools Display Modes
Unread 05-25-2016, 05:37 PM   #1
Gone Wild
 
thetoddjohnson's Avatar
Mixed Breed
 
Join Date: Jun 2013
Location: North Carolina
Posts: 476
Default How much voltage differential is ok?

I left a DC to DC converter connected for the winter and it drained my pack. Oops! Three of the batteries drained all the way down to 0 V. Using an 8 V charger I individually charged those dead batteries. Each of them are now at 8 V. The other three batteries are at 8.5V. If I plug the whole string into a 48 V charger the three that are at 8.5V start to boil relatively quickly. I think I have three options and I would like opinions on the following three:

(1) Don't worry about it, just let it charge, let them boil and it'll all work out.

(2) Drive the cart in an attempt to deplete all of the batteries, then charge the bank. (Will this draw down from the 8.5V batteries or will it take the 8 V batteries down even lower?

(3) Use a trickle charger individually on the batteries and try to get them all to be roughly the same voltage before charging them together with the 48 V charger.

My gut tells me that option three is the best. If that is the case how close do I need them to be? Obviously half of a volt is too much.

Is there some other option that I'm not thinking about?

TJ

PS - All six batteries were new last June.
thetoddjohnson is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Unread 05-25-2016, 05:43 PM   #2
Cave Dweller
 
Swan's Avatar
Club Car
 
Join Date: Apr 2013
Location: Always On The Move
Posts: 5,614
Default Re: How much voltage differential is ok?

i would stick with #3 and hope for the best
Swan is offline   Reply With Quote
Unread 08-12-2016, 08:42 PM   #3
Not Yet Wild
 
Dragracer_Art's Avatar
Club Car
 
Join Date: Aug 2016
Location: Cumming, GA
Posts: 38
Default Re: How much voltage differential is ok?

I know this is an old thread but I just thought I'd add my experience with SIX 8v batteries drained to ZERO.

I pulled them out of the cart and connected all in parallel... then charged with a 12v 2/10/50a car charger on and off over the course of a few days.
The batteries slowly came back to life and were all within a few 10ths of a volt of each other.
About a week into it I obtained a 20a 48v charger and have been keeping them charged up in the cart now. The pack usually settles out at 50.1-50.3v a day after charging.

Being the batteries are 9 years old... I don't trust them on a long ride but it's good enough to run the kid to the bus stop or joyride the other kids around.

The effort to save these old batteries was worth it in that it bought me more time to tinker with the cart before dropping a bunch of mone into new batteries.
Dragracer_Art is offline   Reply With Quote
Unread 09-14-2016, 08:32 PM   #4
Gone Wild
 
dannyre's Avatar
Club Car
 
Join Date: Aug 2016
Location: Galveston, Texas
Posts: 407
Default Re: How much voltage differential is ok?

What is the normal voltage range for a fully charged 6-8v system? 50volts , 51volts, 52 volts?
dannyre is offline   Reply With Quote
Unread 09-14-2016, 09:43 PM   #5
Gone Wild
 
teecro's Avatar
Club Car
 
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,138
Default Re: How much voltage differential is ok?

Quote:
Originally Posted by dannyre View Post
What is the normal voltage range for a fully charged 6-8v system? 50volts , 51volts, 52 volts?
Fully Charged and Rested (off charger 12 hours) = 50.9 volts
Attached Images
File Type: jpg SOC%20new.jpg (84.9 KB, 0 views)
teecro is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Extreme DC!


Thread Tools
Display Modes


Similar Threads
Thread Forum
G2 to G9 differential Gas Yamaha
What is the difference between a Voltage Reducer & Voltage Converter Electric Club Car
Differential oil Gas Yamaha
WTB G2/G9 differential Golf Carts and Parts
Pack voltage vs. voltage at charing receptacle Electric Club Car


All times are GMT -5. The time now is 06:01 AM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.