Awesome and very informative video! Thanks for sharing. I noticed you mention in your vids you use this "in your vans". I just completed a van set up (June 2023). I originally used a Sure Power 1315-200. It got way too hot for my liking, like I couldn't even touch the hold down bracket or backside of the solenoid. I did check the recall list and my serial number was not on the recall list. So after seeing this vid I installed a Blue Sea 7622 with the included Blue Sea switch. I thought when I shut off the engine that the batteries become separated. With the Tundra House charger plugged in or not and the switch in Auto mode, Start battery (x1 850/1000 cca lead acid) & House batteries (x2 105 aH AGM) batteries stay combined (connected). The only time they seem to separate is when I use the inverter (connected to house batts x2 105 aH AGM) to make coffee or use the microwave. I was told because the Start battery and the House batteries are not the same brand/type that they cannot stay connected for long periods of time. Can you confirm this is okay or why is it not separating the batteries over night or when parked till next use? I hope you see this. Thanks in advance!
So the Blue Sea should be looking at voltage to decide to disconnect, depending on your loads it could take some time for the voltage to go down to 12.75 for a period of 30 secs. Leave your headlight on for a bit and see if you can hear the disconnect. (it is generally loud enough to hear. Even after you hear the disconnect the voltages will be the same for a bit as they were just connected in parallel. It sounds like it disconnects when you put a load on the house battery. Also remember if you have solar or any charge source that will keep the voltage high enough they will remain connected.
You need to check the voltage on the A B terminals. I the voltage is not dropping below the thresh hold it will not separate. It sound like when you use the inverter it puts a heavy load on it and it does disconnect. Do you have solar?
On a sailboat, may I not use the switch? Simply connecting the two positives from ACR to the two positives on each battery bank and use only the black thin wire from ACR to the negative busbar? If I do it that way, would it work as if in auto mode always? Thanks
@@2004SMB thank you so much. I have been confused about the 6 colorful wires that is why I wondered if I only used the black to ground and eliminated the switch it came with I wondered if it by default after as “auto” - what size fuse you need between the batteries’s positive and the ACR’s positive terminals? I will keep the distance very short. Thanks so much.
The "Run Circuit Mod" is used to turn the bidirectional ACR into a unidirectional ACR. It will put the ACR into auto-mode when the engine is running, allowing all the features of the unit. While parked it will put the ACR in what ever the position of the switch. If left off, it will not not charge the starting batteries, from solar or other plug in charge source. The primary reason is to not waste solar power on the start battery. If needed I can always use the switch in auto mode to top off the start battery.
@@gregoryscalfaro7368 why is the acr not it auto mode while the engine is running? I am not an expert here. I have watched the video segment several times but I still don’t get it. I understand how relays work but I don’t get what it does in it simplest terms.
