They are here in Australia, the price of a 100ah Lithium battery with BMS is getting to be quite reasonable for the benefits. (i'm planning on getting one, might depend on how much $$$ i have left after my fit out, as i brought a new industrial shed and setting up a new workshop adds up)
Anyhow back to the lithium, 10-12kg instead of 27-32Kg, 80 ah (80%discharge) available instead of 50 ah (50% discharge on a 100ah AGM)
quick charge up to 95% instead of 80% no AGM, before float charge.
A lot of motorhomes are throwing in 400amp & higher lithium LIPO4 and running air con and other 240 volts of inverters, as lithium can provide the draw on these things.
I've noticed aussies tend to avoid the 240 volt hookup and free camp and a lot of places out west charge a fair bit more for their powered sites as the camp will be run on diesel generators.
It just would of made sense for Ctek to add a profile to the D250A, as i do expect lithium to take of in the next few years when prices come down a little bit more.