New to this community, so thanks in advance for any and all information. I will be using three UB121000 batteries as house power (already have one, so want to keep all batteries the same), and as I understand it these are AGM types and labeled as non-spillable on the battery case. Research indicates that AGM batteries can be installed in a variety of situations, so is there any reason they could not be installed standing on end to save me some floor space? A similar question regarding my AIMS inverter/charger, could that be installed in a vertical position as well? Floor space is at a premium in my floor plan.

Thanks!

D.