2014 RXV conversion to LiFePO4

[bdserv]

I have more or less completed the conversion of my 2014 RXV over to LiFePO4 cells using a DIY pack. I have one or two loose ends to finalize but I can begin running the cart to see how the cells and the cart perform.

The cells I purchased from Mike over on the DIY solar forum. They are 150 AH cells with a 3C rating.



The tray after removal of the FLA batteries. I drilled 4 holes in the rails that the FLA batteries sit on to hold the battery enclosure in place.



The bottom of my enclosure base plate. The small wood strips are mounted with construction adhesive and screws, and they mate with the ridges in the tray to add side-to-side and front-back stability to the mounting arrangement.



The enclosure is constructed of 3/4-in plywood. You can see the t-nuts that are countersunk into the base plate for the bolts that will come up through the holes I added in the tub rails to hold the enclosure in place.



Batteries installed after top balancing and side panels are in place. The batteries are separated from each other as well as the sides using 2 mm closed cell foam. The cells are under light compression and cannot be moved or removed once the enclosure sides are in place.



Top rails in place.



BMS mounted and wired.



Completed assembly with terminal bolts for connections to golf cart. Rope handles are there to make it easier to lower assembly into battery tub.



Installed in cart. Still enough room for my under seat tray.



Weight of assembly is about 120 lbs. Total cost for everything was just under $1200.00 not including the nice Fluke DVM I bought and the benchtop power supply for top balancing, both of which I needed anyway.