I was interested in the Winstons - I was in contact with the factory last week - they are **STILL** quoting $1 per ah. They were expensive before at that pricing, (when LFP was $120 per cell) , now its just plain crazy ! The rest of the LFP world has massively reduced pricing but Winstons are sticking to the old price come hell or high water. Good luck to them I hope it works out for them but at $60 per cell for a good EVE 314, I'll take my chances on them.
for a48vnom battery, 16 cells at 5.5kg each = 88Kg plus bussbars etc. The Winstons are much heavier. I was keen on the winstons and was hoping they had also reduced a bit, alas they have not. I am attempting to get as many batteries onboard as I can. I am hoping for 12 x 304ah batteries, but this depends on space as to how many I will actually get in. Larger cells would be better to cut down on the interconnects and cell BMS sensing wires. But the Winstons are BIG/HEAVY/EXPENSIVE things. Much sturdier no doubt but I think the pricing is now just a little too much. A 5 x premium./....you really have to really want them !
Yeah, I was still in the 1000AH context. For a boat you'd need to figure then into your ballast calculations. I can see telling the builder you want a hollow keel.
yes the 1000ah Winston's are 41Kg each !!! I was initially going to pony up for them at the inflated price but they dont actually fit so had to fall back to the blue cells. My boat is a special one (hahaha, dont all boat owners think their boat is special in some way). It is a so called "expedition boat". Its made from Aluminum and built for the artic ice flows. She is a heavily built rugged hull but in terrible condition. I am restoring her. Converting from Diesel to electric - so no need for the diesel tank...right? So what to do with it........hmmmm -. So I am thinking on how to get those cells into the diesel tank - its down low so COG is good, it is mid ships and runs Starboard/Port - so nicely balanced out. I think I can get 80 cells in there. But concerned about putting blue cells down in there, in a hard/difficult to reach place for service issues over the years that I hope my batteries will provide service.
Control of the battery environment is going to be a nightmare, while temperature control should be easy, water and batteries do not mix.
so will be a while before they are in the wild for the likes of us here.
