I had them charging for a few days to get them up and diconnected them to see how they were. The dropped to 12.30 over the next night which isn't so good. The good news is they have stayed there for 2 weeks now without dropping any further so there's some life yet. I'm not going to hook them up with the main batteries for obvious resons but I think I can charg them from the aux side of the MX-60 and use them for some kind of seperate back up system.
On the generator shed front,Ive managed to take some batts from the old house bank,an odd panel and the old controller and gave the shed it's own power supply

The batts tucked under the engine quite well for space saving which I need since this shed is only 100 sq ft including the walls (1 ft thick cordwood)

and the controller seems to like it in here,It has a use again


Lots more to do yet before this thing is running but we're making progress again