Peter: Fred is correct. I charge two golf cart batteries and one group 24 starting battery with a 10 amp Guest 110 volt charger with two charging wires.
Works fine. A smaller charger just means more time to achieve a full charge, which is fine with me because I only use it on trips when I want to do an overnight charge in a marina. Even a trickle charger will eventually bring a large battery bank to full charge. My 30 watt solar panel will bring the golf cart batteries to full charge over several days of Florida sunshine, depending on discharge. Jack Brennan Former C&C 25 Shanachie, 1974 Bristol 30 Tierra Verde, Fl. Sent from my Samsung Galaxy Tab®|PRO -------- Original message -------- From: Frederick G Street via CnC-List <cnc-list@cnc-list.com> Date:03/04/2016 5:33 PM (GMT-05:00) To: cnc-list@cnc-list.com Cc: Frederick G Street <f...@postaudio.net> Subject: Re: Stus-List Soliciting Advice on 33-2 Battery Complement Peter — please remember that six-volt and twelve-volt batteries are made from 1.5-volt cells; the only difference is the number of cells wired in series to make up the battery. Two six-volt batteries wired in series are functionally equivalent to a twelve-volt battery. I can understand if that particular ProMariner charger doesn’t have enough current to charge a large battery; but "each leg of the charger attached to a single battery” would apply to two six-volt batteries wired in series. There’s no way for the charger to know the difference, and electrically there IS no difference. Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^( On Mar 4, 2016, at 4:03 PM, Peter Fell via CnC-List <cnc-list@cnc-list.com> wrote: No. It won’t work. It will not charge two batteries in a bank either in series or in parallel by spanning across the batteries. It will only work with each leg of the charger attached to a single battery. That is very specifically identified multiple times in the literature. 6V golf cart batteries are a no-go. Full stop. End of discussion. See my previous posts. If someone at ProMariner or a retailer is giving you other info then they are wrong. I admit that ProMariner support is a bit daft ... I’ve had to re-ask questions several times to obtain answers to all the questions that I asked. The Pro-Sports I think are decent chargers at a great price-point with some rather unique features, like distributed charging ... but they have their limitations. Peter Fell Sidney, BC Cygnet C&C 27 MkIII
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