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Hey all After the freeze here in Texas I got very interested in Solar. I currently have 16kw on my roof with Q-Cell Panels and Enphase Microinverters. No batteries yet as I don't think they make financial sense Started watching the videos, and its got me very interested in some small DIY projects

I have an APC SRT3000RMXLA which is a 2u, 2.7kw double conversion UPS Instead of buying more SLA batteries. Could I replace them with Lithium to get longer lifetime? The stock configuration is 8 x 12v 5ah SLA batteries, connected to make a 96v pack. Is there a drop in replacements for a 5ah...