no.. all they see is the battery
technically, due to the bulk/acceptance/float charge cycles determining the charge voltage & time applied and the logic decisions made by the individual chargers then there is certainly the likelihood of one charger
being in its acceptance phase (say), and one in float (say), such that the two charging
voltages are different, however they both simply see the battery voltage, not the charging voltage of the other charger, and the result is that one would be attempting to charge and one not.
There is no issue of any sort in this as it is the same as starting your engine
while having the battery charger switched on.
Originally Posted by seacap
Now here's the question: They both feed into the house bank. Do the separate controllers see the increased system voltage of the other and say...hmmm looks like the system is up and I don't need to do anything?