Francois, The alternator should only charge the battery that is selected. That being said, I recommend installing an ACR so that when one battery is seeing 12.9 volts, the batteries are combined and then they all charge.
Good for solar charging too. All the best, Edd ----------------------------------- Edd M. Schillay Captain of the Starship Enterprise C&C 37+ | Sail No: NCC-1701-B City Island, New York www.StarshipSailing.com ----------------------------------- 914.774.9767 | Mobile ----------------------------------- Sent via iPhone X iPhone. iTypos. iApologize On Jun 12, 2018, at 6:09 PM, Francois Rivard via CnC-List <cnc-list@cnc-list.com> wrote: Do you guys know if the alternator charges all the batteries all the time? I was under the impression that the selector switch effectively directed all the current from the battery banks including charging from the alternator and I usually run on "both" to make sure all the batteries get exercised. Now that I might be looking for a new charger (Different story) and I'm looking into this charging thing deeper / I'm reading on the web that the alternator might actually be charging both all the time regardless of the switch position? We mostly daysail and don't require much from the batteries so I thought it would be a good idea to have them all involved both in charging and discharging so I typically use the "Both" option on the switch. Now I'm thinking I should maybe just use position 1 except when at anchor or for extended night cruises? Thanks, Francois Rivard 1990 34+ "Take Five" Lake Lanier, GA _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
