You can get the cells cheaper from china but you have yo wait like 2 months. There are UK based companies who buy them test them and sell with a next day delivery, that's why you pay extra. How much would you expect for a EVE 280ah cell?Yes, there should be a voltage he can set SCC to that doesn't cause disconnect. I think cells have diverged too far with other cells < 3.4V, ought to have remained balanced up to maybe 3.5V so SCC could be set for 3.5V per cell (14V). If not meeting published spec for charge voltage, should be replaced/serviced under warranty.
If warranty isn't an option, then break out the can opener and do the manufacturer's job for them.
I've dug into stuff and found manufacturer used components outside their specs. After warranty up. Boss though we should have them re-engineer the product and I though we should fix it ourselves. He opted for replacing failed components and continuing to use them out of spec. Cooling system for a laser. My solution would have been change a resistor so operated within spec RPM, and replace hose disconnects with lower backpressure ones.
Is that 800 British Pounds = $1096?
Unless those are superior quality cells, sounds to me like twice the price people here have been paying.
Double-check on that.
Also, make sure about trustworthiness of supplier, since with many there isn't a practical return option. (Maybe that's the price difference you see?)