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Nothing on this website or in direct communications received from us, or in our articles in the media, should be construed to mean or imply that offshore voyaging is anything other than potentially hazardous. Dangers such as, but not limited to, extreme weather, cold, ice, lack of help or assistance, gear failure, grounding, and falling overboard could injure or kill you and wreck your boat. Decisions such as, but not limited to, heading offshore, where you go, and how you equip your boat, are yours and yours alone. The information on this web site is based on what has worked for the authors in the past, but that does not mean it will work for you, or that it is the best, or even a good way for you to do things.
I think Eric is spot on. Victron smart shunts allow their smart solar and DC to DC chargers to end charging when reaching a specific tail current. I believe 3.45 volts per cell gives the fastest charging without driving cell imbalance. If you need to be above or below the knees in the charge curve you need a bigger bank.