lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric EZGO > Lithium EZGO


Post New Thread  Reply
 
Thread Tools Display Modes
Old 09-16-2023, 11:00 AM   #1
kabinski
Not Yet Wild
 
Join Date: May 2010
Posts: 46
Default 2five with Bob Boyce tune lithium conversion questions

2019 EZGO 2five

Iím interested in this kit based on suggestions from other threadsÖ https://www.epochbatteries.com/produ...y-complete-kit


Some questions:

1) Bob Boyce worked his magic a few years ago. Not exactly sure what he did technically, but itís faster and has more torque. I know he tweaked the regen braking and a few other things, as well. Will any of this be an issue converting to lithium? Will any settings need to be reprogrammed?

2) Is this kit, and most others that are similar, just a matter of ďplug and playĒ as long as I use the charger that comes with the kit? Or is there any programming of the controller necessary or required after the install?
kabinski 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
   
Old 09-16-2023, 11:34 AM   #2
TheCartBoy
Gone Wild
 
TheCartBoy's Avatar
E-Z-GO
 
Join Date: Aug 2021
Posts: 893
Default Re: 2five with Bob Boyce tune lithium conversion questions

With that kit: 240A Max Continuous Discharge (400A 10S Discharge) (800A 3S Peak Discharge)

The 2five has a 350 amp 1206AC motor controller, the 350 amp refers to the max phase current applied to the motor. The current pulled from battery is generally less, except in some operating conditions, maybe stalled motor? And even with that, you get some higher time limited current draw before the BMS will shutdown. You can put a clamping ammeter on your B+ lead and look at current draw during your typical drive, to get a better feel.

The issue with aftermarket lithium on RXV and probably the 2five, is the electric parking brake. If you exceed the BMS current limits, or some other protection mode kicks in and shuts off power, you lose all regenerative brake and the parking brake will lock up.

The voltage ranges are different between lithium and lead acid, but lithium is a smaller range within the tolerance of lead acid - so you should be free from under voltage and over voltage faults, the SOC meter isn't going to be accurate, but the kit comes with a new one.

If you can get a hold of a .CPF from your controller, someone here can help you identify what settings were modified - then you'd know where to look if something seems weird.
TheCartBoy is online now   Reply With Quote
Old 09-16-2023, 01:04 PM   #3
kabinski
Not Yet Wild
 
Join Date: May 2010
Posts: 46
Default Re: 2five with Bob Boyce tune lithium conversion questions

Thank you for your time and insight. I was ready to pull the trigger on a new Liberty Elite lithium LSV, but I love the 2five and itís been a great cart. Iíve contemplated the conversion for a while and after visiting the local EZGO dealer yesterday, even the sales guy there seemed to push me in the direction of doing the conversion. The chance of the parking brake locking up has me concerned, though. I had an RXV prior to the 2five, and with both there has always been a bit of concern with the brake locking up due to stories Iíve heard. We live at the beach and drive the cart everywhere we can. Iím not sure I want to put my wife and son at risk (even if small) in regards to the potential braking issue. I think you may have steered me back to the Liberty. Thanks again.
kabinski is offline   Reply With Quote
Old 09-16-2023, 01:11 PM   #4
TheCartBoy
Gone Wild
 
TheCartBoy's Avatar
E-Z-GO
 
Join Date: Aug 2021
Posts: 893
Default Re: 2five with Bob Boyce tune lithium conversion questions

The Liberty is pretty nice, but it comes standard with a 235amp 1206AC controller. Only recently are they offering a 350amp upgrade, which is what your 2five came with standard.

Everyones risk tolerance is different, I think it's fairly unlikely to experience the brake lock up, and if you wear the seatbelt your not going to fall out of the seat... if you can find a lithium battery that offers 300 amps continuous, I think you'd pretty much rule out the possibility a BMS shutdown due to exceeded current draw.
TheCartBoy is online now   Reply With Quote
Old 09-16-2023, 01:19 PM   #5
TheCartBoy
Gone Wild
 
TheCartBoy's Avatar
E-Z-GO
 
Join Date: Aug 2021
Posts: 893
Default Re: 2five with Bob Boyce tune lithium conversion questions

One more thought, if the epoch supplied display gauge tells you how much current you are pulling and perhaps a warning if you are exceeding the timed limits, then you would know to slow down to prevent a shutdown. A built in warning alarm would be nice too, I don't see why they couldn't design that in.
TheCartBoy is online now   Reply With Quote
Old 09-16-2023, 01:20 PM   #6
usgicollector
Gone Wild
E-Z-GO
 
Join Date: Mar 2014
Location: NE Indiana & SW Florida
Posts: 3,154
Default Re: 2five with Bob Boyce tune lithium conversion questions

TheCartBoy, the 2Five's came with a 235amp controller not a 350amp standard.
usgicollector is offline   Reply With Quote
Old 09-16-2023, 01:24 PM   #7
TheCartBoy
Gone Wild
 
TheCartBoy's Avatar
E-Z-GO
 
Join Date: Aug 2021
Posts: 893
Default Re: 2five with Bob Boyce tune lithium conversion questions

Quote:
Originally Posted by usgicollector View Post
TheCartBoy, the 2Five's came with a 235amp controller not a 350amp standard.
Oh didn't realize that. So the 350amp one was the upgrade.

In that case, OP probably won't have any issues with the epoch lithium kit.

Last edited by TheCartBoy; 09-16-2023 at 01:25 PM.. Reason: Follow-up
TheCartBoy is online now   Reply With Quote
Old 09-16-2023, 01:26 PM   #8
usgicollector
Gone Wild
E-Z-GO
 
Join Date: Mar 2014
Location: NE Indiana & SW Florida
Posts: 3,154
Default Re: 2five with Bob Boyce tune lithium conversion questions

There never was a 350amp controller that I know of for the 2Five.
usgicollector is offline   Reply With Quote
Old 09-16-2023, 01:44 PM   #9
TheCartBoy
Gone Wild
 
TheCartBoy's Avatar
E-Z-GO
 
Join Date: Aug 2021
Posts: 893
Default Re: 2five with Bob Boyce tune lithium conversion questions

676512g02
controller,1206ac,lsv,350a

Rare item I guess
TheCartBoy is online now   Reply With Quote
Old 09-16-2023, 02:01 PM   #10
usgicollector
Gone Wild
E-Z-GO
 
Join Date: Mar 2014
Location: NE Indiana & SW Florida
Posts: 3,154
Default Re: 2five with Bob Boyce tune lithium conversion questions

It won't let you order one it say Oops! no product found for this SKU. I've never seen or heard of one myself. Maybe someone will chime in and if they do, I would love to see the CPF on it.
usgicollector is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric EZGO > Lithium EZGO


Thread Tools
Display Modes


Similar Threads
Thread Forum
2013 RXV lithium conversion with Bob Boyce tuning - can it be done? All things Lithium
2Five Lithium Conversion gives 25104 Error Code Electric EZGO
New EZGO 2Five Lithium Conversion Lithium EZGO
EZGO 2Five Lithium Conversion Question Lithium EZGO
EZGO 2Five Lithium Conversion Lithium EZGO


All times are GMT -5. The time now is 05:40 PM.


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

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2023, vBulletin Solutions, Inc.
This Website and forum is the property of Buggiesgonewild.com. No material may be taken or duplicated in part or full without prior written consent of the owners of buggiesgonewild.com. © 2006-2017 Buggiesgonewild.com. All rights reserved.