I do not like using the "Both" option for selector switches. If one battery dies, then it will drag the other battery down and you'll be stuck.
For many years, I had two identical batteries on Touche'. My simple system was to use Battery 1 on odd numbered days and Battery 2 on even numbered days, never "Both". That ensured I always had one hot battery. You can get complicated with ACR's, etc. or a large house bank and dedicated start battery but the system I described above is simple and effective. The alternator should charge whichever battery is selected. Dennis C. Touche' 35-1 #83 Mandeville, LA On Tue, Jun 12, 2018 at 5:09 PM, Francois Rivard via CnC-List < [email protected]> 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 > > >
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