High Tech Question?

After having some AGM batterys for awhile now I am beginning to think that there is no real difference to other lead acid batteries, but then again I do not seem to be getting consistant behavior. Does anyone know any signifigant differences differences? there might be a voltage operizational range difference I am reluctant to try.:confused:set points are 12.4 lvd/13.8reconnect
Always troubleshoot with adequate sunlight.  Hi Ho Hi Ho
2.3kW [10] Enecsys SMI-240-60 micro inverters