Swapped batteries in the golf cart this week.
Everything I need to live is within maybe a three mile radius of me, and still allows me to reside in basically a typical suburban neighborhood. I really like where I live. Lowes foods and lowes home improvement are side by side and less than a mile away... several fast foods and a decent steakhouse/bar all with golf cart distance. And it's legal here to use them on the road.
So I use it a lot. I bet I put twice the miles on the cart than I do the truck anymore, and that's even considering when I go through the trouble of firing up the truck its usually at least 50 miles I have in mind for it.
Anyway....
I swapped over to LiFePo4 batteries... lithium iron phosphate... its just a little 36v cart and with enough mods to make it relatively quick- 24mph top end- and without hills here on the coast it suffices nicely. I can get around 15-20 miles on a charge using 6 6vdc Trojan flooded lead acid batteries, and they take 10 or so hours to recharge from 60% to ~90%... they weigh 90 pound each.
The three 105ah 12vdc LiFePo4 batteries, all together, weigh just under 60lbs....
My dang cart lost some weight, yo! And, there is enough room for a medium size cooler under the seat now. I dont know that it's faster, but it takes off like a raped ape... and it charges to full in less than four hours FROM 0% charge. That's nuts to me. They can be discharged all the way down to 0, but it's recommended they don't go below 10% as their monitored/managed built control system may try to let too much charge past at once and trigger the circuit protection...
The Trojans, replaced with new like them, would have cost $900.. and the best they'd last is 4 years... 3, more likely and commonly. These LiFePo4 batteries are rated for 10 years. Yeah, I wouldn't spend that much on a toy every three years either, nor the $1200 I dropped on these- but I use that cart a LOT.
If any of yall have a golf cart, I highly recommend making that swap.
