I have three identical lead acid batteries. All three batteries are on a common ground since they power different components on a same circuit. I have three independent "intelligent" chargers whose charging outputs are on isolated grounds.
I wonder if there is a counter-indication of charging all three batteries at the same time when on a common ground (their positive poles are disconnected from the main circuit, of course). I know this could be charger-specific, but if anyone knows anything about it.
Here is a quick schematic of what it is (would be) like when charging: