I'm not impressed with the LiFePO4 golf cart batteries as they are right now. Personally I think the EV community gives them way too much credit. I won't even consider using these batteries until they improve on the technology and prices come down. What is currently the best choices for batteries? Why not use large batteries like the Rolls Surrette? Would this work well in a lead sled? The initial price is high but with a rated life of 10 years and the extra range you get out of 460ah it seems like a great investment.