Building a DIY UPS using off-grid solar inverters
Then I found two candidates for what I wanted, the MPP Solar PIP-LV-MK SERIES – ZERO TRANSFER TIME inverters and the Growatt 3kW Stackable Off-Grid Inverter | SPF 3000TL LVM-ES. Now I had narrowed down my inverter options I started looking at batteries, everything from Battle Born Batteries, SOK, Big Battery, and EG4.