Cheapest way to get into the 72v club :-)

Dragracer_Art

I will be looking for a new set of batteries in the coming months and may as well buy six 12 volts instead of six 8 volts.

Obviously the controller will need to be swapped... but will the OEM 48v motor live long at 72v ?

Just give me a parts list to start pecking away at.

I can probably sneak a 'grand worth of stuff under the wifes radar if I spread it out over a few months. This is how my gun collection grows.

BGW

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scottyb

What cart are you asking about?

Dragracer_Art

duh
Sorry.

95 Club Car DS
Currently bone stock at 48v

roady89

....how long will the motor last is the question you should be asking. It may work fine for years, it may work fine forever, it may not last 10 seconds. In my personal experience the stock motors hold up pretty good to the higher voltages. (to a point but we're discussing 72 volts in this thread) What they wont hold up to is extreme RPM's. (none of them will unless they are built for it) I think, and please someone correct me if I'm wrong, the motors will generally stay together up to about 8000RPM, after that your going to grenade at some point. If it were mine I wouldn't hesitate to use it.

Throw in a 72 volt Alltrax and good HD contactor and of coarse you'll need a way to charge 72 volts worth of batterys. Personally I like and use the czonka relays (EV200 series) on anything more than 48 volts. (500+A carry, 2000A interrupt at 320VDC) Coil voltage 9-36 volts so you'd have to separate the activation circuit from 72 volts. You can get higher voltage coils they are just not as common. p# ev200adana 32-95vdc coil.

Skoal82

Watching this thread.
Would like to build a sparky also.
With some extra power.

cgtech

also, T1275 or group 31 batteries are not gonna fit in the stock locations.

Dragracer_Art

Is there a 12v GC battery with the same footprint as my GC8's ?

I really was hoping to not have to hack up the battery compartment.

cgtech

if there were, you probably wouldnt want it. even the t1275 is too big a compromise. these days the oems have either abandoned them or offer other better options.

Revolution

All great advice so far!

So your list will be:

*New battery tray and hold downs

*Batteries- 6 12 volt (cgtech is correct this is a compromise for sure)

*All new wires

*contactor

*controller

*charger

* motor - depending on how you drive it

The 12 volt cart batteries will limit range and torque. The continental 12 volt batteries I have don't like pushing more than 400 amps. They have a lot of voltage sag under load, but they were intended to run stock golf carts at less than 300 amps. The 9 8volt batteries in my 4x4 cart put out 800-900 amps with ease compared to the 12 volt batteries.

CFECO

There is another way...completely different angle, and needs more expert than me to find out how to do it, charge etc. You could get some Chevy Volt batter sections, on Ebay they come in 12v, 24v, 48v, and 96v usually. You could mate a 24v to a 48v and get 72, and then double that for more range. They ate small and light. My 48v section is about the size of a large 12 volt car battery. I am building a 48v ( for now) buggy with these batteries, just starting out, they require very specific Charging and Battery Management Systems...so I probably failed on your "Cheapest" track.