My installer likes the AM2 and keeps some stock of it. He was willing to swop out for other brands, but then I'd have had to wait even longer and I was gatvol to say the least.
He said if the batteries gives any issues he'll swop them out if I take the AM2s.
So then it came down to timing and support. I would have preferred Sunsynk batteries, but if anything were to go wrong, Im screwed.
So far the batteries seem to perform as expected, but it's only been two weeks.
One thing I noticed is the new AM2s seem to be rated at 6 KW but the BMS only allows 100Ah rather than the 125Ah that's displayed on the side of the battery.