TXT Series cart upgrade question

[unknown1]

New guy here. I recently was gifted a 36v EZ-Go Series TXT with a few goodies on it including the rear seats, some kind of lift, 22x11's, a Curtis 350A controller and a few other cosmetic goodies. The cart runs great but seems to die pretty quick. I went ahead and swapped out the #6 cable for some copper 1/0 with soldered lugs although it didn't seem to make much of a difference.

I am guessing it is due for new batteries but is there anything else I should be replacing? I was thinking maybe a heavy duty solenoid since mine gets somewhere between warm and hot after driving around.

Suggestions appreciated!

[scottyb]

Where do you use it and how? Sounds like you need batteries soon. 48v might be an option.

[unknown1]

Its a neighborhood cruiser. We do have some hills and even though they aren't extreme, i typically have myself the wife and 3 kiddos on it adding up to about 500lbs. (Kiddos are young)

I called a local shop and he suggested the Trojan 105's@$125 each.
If i go 48V, i assume i would pick up 8volt instead of 6volt batteries? I would prefer to just stick with 6 batteries if possible. Beyond that i am looking at a charger for sure, solenoid, possibly a controller and even a motor?

It would have to be a night and day difference to jump to 48V if that's the case.

[scottyb]

You can run an Alltrax SPM48400 with a max output of 460 amps on 48v the stock 36v motor would produce 33% more speed and about 45% more torque for the hills. Needed:
SPM48400
200 HD solenoid
48v Charger
6/8v batteries.

This would result in a big improvement in performance.

[unknown1]

So assuming the battery prices are pretty close, i am looking at

SPM48400 $350
200HD Solenoid $50
48V Charger $300-350

Does that look about right? Is the fwd/rev assembly good for 48V? I assume it is but figured i should ask.

Am i significantly lowering the life of the motor by running it on 48V?