38 volt system

Denton · 04-26-2009, 05:43 PM

Hello, I found a broken terminal on my 93 EZ-GO Standard series 36volt cart. Has anyone had experience in adding one 8 volt battery to the system without additional mods? I would think that the standard components have a 10% variation without loss of function or meltdown, but my experience is only with 6 volt to 8 volt automotive. I'm guessing that the total fully charged voltage will be less than 40 volts, the remaining (5) 6 volt batteries are probably a couple of years old, or more. I have the new 8 volt on the shelf.

How will the 36 volt charger react?

Many thanks, Denton

scottyb · 04-26-2009, 05:56 PM

Under normal circumstances mixing old and new batteries is a bad idea. The charge requirements are very different for the two. When mixed the new battery cooks while waiting for the old ones to finish up...If you put 5 old 6v and 1 new 8v together my guess is gonna be the that the 8v reaches it's 100% capacity of 8.49 rather quickly. Leaving the 5 old 6v to split up the remainder of the 38.20 or 30v. The charger will cut off somewhere just above the 38v mark.....hope this makes sense...I wouldn't try it. But, WELCOME to BGW!

Denton · 04-26-2009, 08:34 PM

Thanks for the info, Scotty. You didn't mention any adverse effect on the solenoid, etc. due to the slight increase in voltage, so the main disadvantage is in the charging. That's what I suspected, as well. I believe I'll check with the charger company, I believe this one is a "Powerwise" and I'll post the answer I receive.

Thanks very much for the quick reply, this is a great site and a real bonus to any cart owner.

Regards, Denton

scottyb · 04-26-2009, 08:38 PM

I would be curious to see what ezgo's opinion is ..... if you can get one?

rusty · 04-26-2009, 09:18 PM

Hello Denton and Welcome to the forum.

mikesmotortoys · 04-26-2009, 10:06 PM

Your only increase in voltage will be when you FIRST put the FULLY CHARGED 8 volt battery in for the first time into your previously charged system. Once installed and discharged, your charger is only going to charge the system to the same voltage as it would if you had six 6 volts.

bhfear · 04-27-2009, 12:36 AM

ya im with mike, its only going to charge to 36v not 38v so no point in doing that, and if you throw that 8v fully charged in there who knows youll probably blow the controller but what do i know

04-26-2009, 05:43 PM	#1
Denton Not Yet Wild Join Date: Apr 2009 Posts: 2	38 volt system Hello, I found a broken terminal on my 93 EZ-GO Standard series 36volt cart. Has anyone had experience in adding one 8 volt battery to the system without additional mods? I would think that the standard components have a 10% variation without loss of function or meltdown, but my experience is only with 6 volt to 8 volt automotive. I'm guessing that the total fully charged voltage will be less than 40 volts, the remaining (5) 6 volt batteries are probably a couple of years old, or more. I have the new 8 volt on the shelf. How will the 36 volt charger react? Many thanks, Denton
Denton Not Yet Wild Join Date: Apr 2009 Posts: 2

04-26-2009, 05:56 PM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: 38 volt system Under normal circumstances mixing old and new batteries is a bad idea. The charge requirements are very different for the two. When mixed the new battery cooks while waiting for the old ones to finish up...If you put 5 old 6v and 1 new 8v together my guess is gonna be the that the 8v reaches it's 100% capacity of 8.49 rather quickly. Leaving the 5 old 6v to split up the remainder of the 38.20 or 30v. The charger will cut off somewhere just above the 38v mark.....hope this makes sense...I wouldn't try it. But, WELCOME to BGW!

04-26-2009, 08:34 PM	#3
Denton Not Yet Wild Join Date: Apr 2009 Posts: 2	Re: 38 volt system Thanks for the info, Scotty. You didn't mention any adverse effect on the solenoid, etc. due to the slight increase in voltage, so the main disadvantage is in the charging. That's what I suspected, as well. I believe I'll check with the charger company, I believe this one is a "Powerwise" and I'll post the answer I receive. Thanks very much for the quick reply, this is a great site and a real bonus to any cart owner. Regards, Denton
Denton Not Yet Wild Join Date: Apr 2009 Posts: 2

04-26-2009, 08:38 PM	#4
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: 38 volt system I would be curious to see what ezgo's opinion is ..... if you can get one?

04-26-2009, 09:18 PM	#5
rusty Golf Cart Photographer Join Date: Jan 2007 Location: Wichita Falls Texas - My Ride 2010 Club Car Posts: 6,236	Re: 38 volt system Hello Denton and Welcome to the forum.

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04-26-2009, 10:06 PM	#6
mikesmotortoys Gone Wild Join Date: Mar 2008 Location: Rockwall, Texas (Dallas / Ft. Worth) Posts: 7,077	Re: 38 volt system Your only increase in voltage will be when you FIRST put the FULLY CHARGED 8 volt battery in for the first time into your previously charged system. Once installed and discharged, your charger is only going to charge the system to the same voltage as it would if you had six 6 volts.
	www.MIKESMOTORTOYS.com www.EZGOPARTSONLINE.com Factory EZGO - Bad Boy Buggy - Dixie Chopper Mowers

04-27-2009, 12:36 AM	#7
bhfear EZ-GO-N Join Date: Dec 2007 Location: Geneseo, IL Posts: 505	Re: 38 volt system ya im with mike, its only going to charge to 36v not 38v so no point in doing that, and if you throw that 8v fully charged in there who knows youll probably blow the controller but what do i know

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