Club Car DS w/ alltrax slowing down

[tunes]

So I've got a 2000 Club Car DS 48v that I have put a MOT-A1 motor, alltrax sr48500, upgraded f/r, upgraded cables, solenoid (bought the whole kit from Scotty). Batteries are 2018 Trojans. The cart was awesome for a while (i put all the stuff on about a year ago), but the past month or so i've noticed the cart has slowed down significantly...it seems like it's performing now like it was when originally stock. I never measured the speed before but I'd say I was probably getting 21-22 mph out of the cart, now I'm maxing out at 15 mph. What could be causing this and how can I fix it? Thanks in advance

[fsu1tm]

Batteries. Give them a full charge, disconnect from charger, wait 12 hours, and then measure the voltage across the entire pack and each battery individually. Make sure you have a good volt meter. Report back with the results. If you want to go ahead and move to step two, measure pack voltage under load and each battery under load. You can search the forum for this process. Report these results too.

[tunes]

Originally Posted by fsu1tm

Batteries. Give them a full charge, disconnect from charger, wait 12 hours, and then measure the voltage across the entire pack and each battery individually. Make sure you have a good volt meter. Report back with the results. If you want to go ahead and move to step two, measure pack voltage under load and each battery under load. You can search the forum for this process. Report these results too.

ok will start with that. could they already be going bad less than 3 years old?

[handtools]

Also hook the controller up to your computer and verify that the throttle is going to 100%

[Lampworker]

Colder temps?

[tunes]

Originally Posted by Lampworker

Colder temps?

definitely colder around here, but only in the 40s

[tunes]

Originally Posted by handtools

Also hook the controller up to your computer and verify that the throttle is going to 100%

i'll see if i can find a windows laptop

[Lampworker]

Originally Posted by tunes

ok will start with that. could they already be going bad less than 3 years old?

Not impossible, could be that just one of the cells is bad. Would have to load test them individually to tell for sure.

I have noticed a significant loss of power since it got cold here in Missouri fwiw. I too have alltrax setup on my DS.

[tunes]

Originally Posted by Lampworker

Not impossible, could be that just one of the cells is bad. Would have to load test them individually to tell for sure.

I have noticed a significant loss of power since it got cold here in Missouri fwiw. I too have alltrax setup on my DS.

well that does make me feel better, thanks.

[HeatWave]

Originally Posted by tunes

definitely colder around here, but only in the 40s

I can feel the difference in top speed, acceleration, and range, when the temps drop into the mid 50s.