Thanks Gary. I get that and I suppose it certainly simplifies the wiring - you essentially have one bank for charging purposes. No opinion at this point although I do feel silly having spent the last year dutifully switching between 1-both -2. I assume it’s just a relay that connects the circuit at a set voltage. Not sure how it can be smart enough to determine which bank to charge first but perhaps they are more than just a relay.
John > On Apr 5, 2016, at 9:13 PM, Gary Russell via CnC-List <cnc-list@cnc-list.com> > wrote: > > Hi John, > I've had ACRs on my boats for the last 15 years and I think they are one > of the best upgrades you can do. When I bought "Kaylarah" (formerly "High > Maintenance",adding and ACR was one of my first upgrades. They are usually > wired to charge the house bank first, then the start bank. If your start > bank was very low, you could could still use a combine switch to get the > engine started. I have never had a problem with the ACRs and I can't say the > same about a 1-BOTH-2 switch. All you have to do is forget to switch to 1 or > 2 after you shut the engine off and you can kill both batteries while sitting > on a hook. That won't happen with and ACR. I think you will come to like > them. > > Fair winds, > Gary > S/V Kaylarah > '90 C&C 37+ > East Greenwich, RI, USA > > ~~~~~~~_/)~~~~~~ > > > On Tue, Apr 5, 2016 at 8:38 PM, John Pennie via CnC-List > <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote: > So while connecting batteries today i discovered, to my surprise, that Paws > has an automatic charging relay between the two battery banks. Yes, I’m > still learning this boat. So as I understand it, once voltage hits 13.6 > volts (or 13.0 for 2 minutes) the relay will automatically combine the two > banks to share the changing source. Not sure how I feel about that. > > On the plus side, I guess it’s great that I don’t have to worry about moving > a battery selector switch while the engine is running. On the down side - > > How does a battery charger monitoring two banks handle this? I just seems it > has to screw up the logic on the charger. > Essentially there is no way to isolate charging? So if I know I only have > limited time to charge and want to concentrate on one bank I have no choice? > > What I missing? > > John > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated! > > _______________________________________________ > > This list is supported by the generous donations of our members. If you like > what we do, please help us pay for our costs by donating. All Contributions > are greatly appreciated!
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