I converted this 1989 MTD Ranch King gasoline tractor to electric. I've had this tractor for many years and it always did a nice job cutting my lawn, but it was the only lawn tool left that was still gas powered. While the amount of money I put into this probably could have purchased a new mower, the educational value I received is priceless.

Motors: https://goldenmotor.bike/product/72-v...
Motor Controllers: https://kellycontroller.com/shop/kls-mn/
BMS: https://overkillsolar.com/product/bms...
Batteries: https://signaturesolar.com/shop-all/b... (it looks like they no longer sell the bare cell packs I ordered)
Dashboarding Software: https://grafana.com/
Computer Radiator: https://www.amazon.com/gp/product/B09...
Circulation Pump: https://www.amazon.com/gp/product/B07...