This is the first of a series of reports I will make on the installation of a 48V 40AH LiFePO4 Thundersky battery pack kit from Elite Power Systems. I installed this pack in my 48V Evader Scooter, and so far all has gone well. The kit came with cell to cell connectors and associated bolts and washers, along with insulating covers for the connections. The kit also came with a 15 A charger from Thundersky, and the pack is currently charging. I paid $1248 for the kit, which seems to me to be a good buy since the cells are rated for high charging and discharging rates. I have ordered a cheap BMS from China, but it hasn't arrived yet, so for a short while I will operate without one and monitor the voltage on each cell after each ride.
Fitting the cells in the Evader involved some re-arranging of battery containers in the scooter and the cells, which come tied together 4 cells to a harness, and I had to remove all the cells from the harnesses. Wiring up the pack was easy given the hardware provided, and I had to make only a few connectors on my own. The cells come only partially charged and they say not to use them until they have been fully charged, so I will wait until tomorrow AM to take my firs ride.