[Solarsail]

Unless you want to change lead acid batteries every 3 years, and carry 4x the weight around, then go with GM Volt used cells, and get a lot more range.

You would need a 48V CCCV 12s charger.

Duncan, is the module 12s? Does it have balancing, or not needed?

 

[Solarsail]

If weight is not a problem for a golf cart, I would go for range. Why not have 3 or 4x the range? Which means used Volt li-ion modules (or six or seven Leaf sardine cans). Many shops are selling used modules. A 48V charger for li-ion is as little as $50. And as Duncan says, you don't need round-the-clock balancing if you occasionally monitor the state of health of the cells.