Again a good hint from Daniel Boekel, he bought a batch of used Winston LiFePO4 batteries, approximately 155 – 160 Ah capacity left. So, I bought 32 of them, to have approx. 15 kWh of battery capacity.
The batteries were used in electric buses, some of them failed, so they replaced the whole batch. I bought them for approximately one third of the price of new cells.
To make the connections between the cells I use strips of aluminium 30 x 2 or 4 mm. Of course I could have used copper, but that is harder to get, more expensive, and a thicker slab of aluminium has approximately the same resistance. Oh, always use a little bit of silicon grease between the connections, to prevent corrosion.
Dear Hans,
So impressive how you repower this boot.
Nice to read, see movie’s and picture’s.
Good job!