What is the recommended battery type, or size for a L275. I've been told a 24F, but that only is rated for 700 cranking amps. The video shown recommends a 850 cranking amp battery. Any good suggestions?
Like murphy said, "Physical size and post location is the only real concern."
Measure the length, width and height of the battery location/box. Don't forget to take into consideration the terminal height. Make sure you mark the location of the + - terminals. Go to a quality battery shop and get the largest battery (size and amperage) that will fit into the space you have in the tractor. Skip Walmart and discount auto parts places if possible. A place that specializes in batteries will have different brands and KNOWLEDGEABLE staff and can help you select the correct battery. I have used the same battery shop for 35 years with great luck. They carry everything or can get everything from a small 6 volt scooter battery to a 4000lb battery for turret trucks.
Right now I have a unbranded, (no name),designed for fleet use. It's a 27C with top post. This was not my battery of choice but I was made a deal I could not refuse. The battery sold for $129. Someone bought it and had it in their vehicle for two days and said that it was no good and brought it back. The battery dealer charged it and tested it and it was OK, (the truck had a bad alternator but the owner refused to accept that and kept changing batteries). They offered me the battery for $25 with a two year guaranty, (it normally came with a 5 year), so I said "sold to the man with a smile". I figured if I got two winters out of it I was ahead of the game, that was 6 winters ago and it still passes a load test. I always load test all my batteries before winter and replace them if they are even close to marginal.