Depends on which ones are connected where, and how far the burden wires run.
Voltage drop is a thing. Loads matter, and everything in the circuit has its own impedance. Even simple DC resistive circuits can get complex. Imagine how wild AC equations can get when you add power factors and leading and lagging currents and voltages with induction and capacitance. ELI the ICE man cometh. You might have a number of different MPPT solar
, and shorepower chargers messing up the system in small ways with harmonics of AC waves induced with switching power supplies mixing in to further spoof the meters in your system.
The only way to be sure is to get a good meter and read voltage directly at the source on the battery
terminals. And even that isn't a great source of charge information. A battery
hydrometer on a wet lead-acid cell is your go-to telltale source, or onboard diagnostics on the fancy lithium and AGM batteries