Hi
Brian I have 2 x 100 solar panels and when I purchased the battery I also purchased a 20amp lithium charger from the same company who hard wired the charger to the battery ,
the reason I bought a250 amp battery the cost differential between 150 and 250 was not that high
most of my usage is at non hook up sites C&C temporary holiday sites we have just returned from 10 days at a THS in Southport electric hookup £5 day so £50 saved there,
very pleased with the lithium battery and the capacity gives me no concerns with regards to how I will charge it.
regards Brian