100ah AGM wired into two Orion Tr battery chargers in parallel, which in turn are wired into two SOK 206ah lithiums in parallel. The issue is that with the input voltage on both chargers set to 12.5v shut off and 12.8v restart, the input voltage from the AGM starts at about 13.5v but very quickly is drained back to 12.5 causing input voltage lockout. As soon as the input charge hits 12.8v it then restarts charging and does exactly the same thing again. So it’s a cycle that just continues very 30-45 seconds or so.
Wring is over spec from AGM to chargers - small run of 2/0.
