Review on Renogy 12V 100Ah AGM Battery: High-Performance, Low Self-Discharge, And Safe For All Your Off-Grid Needs! by Mike Quade

After two months of operation.I have two of these in parallel in an off-grid solar system, and although I don't have the equipment to prove it, they are putting out probably half of what they're advertised to do. Even after a desulfation cycle (actually 4 of them, on 4 subsequent nights), voltage drops are twice what they should be, and voltage appears to go down significantly even overnight, with no load attached. The one piece of equipment I do have says there are no bad cells, so I can't explain why they aren't sufficient, when on paper, they are well over what I use (and yes, inverter efficiency and a 50% reduction in stated amp hours to prevent overdischarge were taken into account). Not recommended.