simulate this circuit – Schematic created using CircuitLab
I have 3 AGM 12v batteries in parallel. Between Battery 1 and 2 I have a BlueSea SI-ACR Automatic Charging Relay - 12/24V DC 120A; I also have an anderson pole connector (SB175) on the last battery3.
I want to hook up a battery charger to the system.
Should I be doing this @ battery1 acting as the alternator does; or Battery2 since the ACR has already cut power between 1-2 (woundn't this unbalance the charging) or on Battery 3 where I have the anderson pole connector (this is where Iwould prefer to connect the charger though Isuspect this will only balance 2-3 and not 1 since it is isolated with the ACR.
diagram https://1drv.ms/i/s!AmOoj1nayk49jcdVgFRUGvoiW9gjig