lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric Yamaha
Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



Post New Thread  Reply
Thread Tools Display Modes
Unread 10-22-2019, 12:54 PM   #1
Gone Wild
Yamaha
 
Join Date: May 2016
Location: California
Posts: 172
Default New batteries quick discharge

Good morning all. My brother bought new blackbox trojan 8v's for his 2011 ydre. While charging, the batteries read 55-56 volts which I believe is normal. However, after unplugged for 12 hours the pack read 50.01 yesterday. He took a 30 second spin, and the pack had dropped to 49 volts. I previously unhooked the voltage reducer in case it was drawing. The cart is otherwise stock. Any thoughts? Thanks!!
Unsoshl 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 10-22-2019, 01:05 PM   #2
go to cartsunlimited.net
 
scottyb's Avatar
E-Z-GO
 
Join Date: Dec 2007
Location: Southern California
Posts: 68,626
Default Re: New batteries quick discharge

55 is hardly a full charge and 50.9 is normally what you want to see from a 48v pack at rest.
You may need a better charger?
scottyb is offline   Reply With Quote
Unread 10-22-2019, 01:52 PM   #3
Gone Wild
Yamaha
 
Join Date: May 2016
Location: California
Posts: 172
Default Re: New batteries quick discharge

Thanks Scottyb. His charger appears to operate and shut off as normal, but I’ll try mine out to see if that’s the issue. Appreciate it!!
Unsoshl is offline   Reply With Quote
Unread 10-22-2019, 05:09 PM   #4
Gone Wild
Yamaha
 
Join Date: May 2016
Location: California
Posts: 172
Default Re: New batteries quick discharge

So I used my charger on his cart, and after charger showed solid green (full charge) the cart was at 51.0 right when unplugged. I know this is low, but am at a loss as to why it isnít fully charging.
Unsoshl is offline   Reply With Quote
Unread 10-22-2019, 05:11 PM   #5
Gone Wild
 
Sergio's Avatar
Club Car
 
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 7,485
Default Re: New batteries quick discharge

Make sure the charger receptacle positive lead is connected to the pack positive battery post so all batteries are charging.
Sergio is offline   Reply With Quote
Unread 10-22-2019, 05:44 PM   #6
Gone Wild
Yamaha
 
Join Date: May 2016
Location: California
Posts: 172
Default Re: New batteries quick discharge

Just verified it is. If it helps, each battery is between 8.46-8.5 volts after charge.
Unsoshl is offline   Reply With Quote
Unread 10-23-2019, 03:03 PM   #7
Gone Wild
Yamaha
 
Join Date: May 2016
Location: California
Posts: 172
Default Re: New batteries quick discharge

Anything else you folks suggest I check? Frustrating. I sure appreciate your help as always..
Unsoshl is offline   Reply With Quote
Unread 10-23-2019, 03:38 PM   #8
Over This Interview Is...
 
cgtech's Avatar
Yamaha
 
Join Date: Jun 2012
Location: AZ
Posts: 14,082
Default Re: New batteries quick discharge

8.46 is about 97% charged & 8.50 is 100% charged.
cgtech is offline   Reply With Quote
Unread 10-23-2019, 04:25 PM   #9
Gone Insane
 
Mooncarter's Avatar
Club Car
 
Join Date: Oct 2016
Location: Richmond, VA
Posts: 8,342
Default Re: New batteries quick discharge

Sounds like the charger and the batteries are reading low. You used 2 chargers. Any chance your meter is off?
Mooncarter is online now   Reply With Quote
Unread 10-23-2019, 05:33 PM   #10
Gone Wild
Yamaha
 
Join Date: May 2016
Location: California
Posts: 172
Default Re: New batteries quick discharge

The in-dash volt meter as well as my hand held meter are reading right about the same. Gonna replace all battery cables today. Could this by chance be the reason it's not fully charging? THx
Unsoshl is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric Yamaha


Thread Tools
Display Modes


Similar Threads
Thread Forum
batteries discharge Electric EZGO
Batteries discharge too quick Electric Club Car
2006 Club Car 48V with Gel Paks - Quick discharge??? Electric Club Car
2005 Precedent quick discharge Electric Club Car
quick discharge ? Electric Yamaha


All times are GMT -5. The time now is 12:59 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 - 2019, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.