Almost forgot. Consider your battery bank AHr capacity. The max charger current should be limited to about 25% of the smallest bank capacity. A 20amp charger would be a good fit for an 80AHr battery. This assumes a flooded lead acid. 30% for gel and 40% for AGM.
You mentioned using a hygrometer but this is only for flooded batteries. Despite being "able" to sometimes get the caps off of "maintenance free" batteries you stand a good chance of messing things up more than fixing. So that leaves the decreasingly available maintenance style batteries with individual caps for each cell. Josh Muckley On Aug 7, 2014 8:51 PM, "Josh Muckley" <muckl...@gmail.com> wrote: > Oh yeah, +1 on the ProMariner. > > The PO replaced an old xantrex with a new one which died on him within a > year. I clamed the warranty on it after closing on the boat but was > disappointed when the new one died within a week. Warranty refunded and I > switched to a ProMariner and haven't heard a peep from it in 2.5 years. > > Josh Muckley > On Aug 7, 2014 11:07 AM, "Patrick H. Wesley via CnC-List" < > cnc-list@cnc-list.com> wrote: > >> >> Investigating availability of "smart" or three step charger to install in >> locker next to batteries, obviously concern is size for this type of >> boat, or portable one. Must have auto shut-off. Any ideas? Battery guy says >> most car type chargers only measure volts and shut off when reach the limit >> but you then need to put it on manual and charge another four hours, which >> isn't practical given distance house/boat. Also that real importance is >> amps and only way to measure that is using a battery acid hygrometer. >>> >>> >> Thanks in advance. >> >> Patrick Wesley, Sidney BC >> >> >> -- >> Sent from Gmail Mobile >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go bottom of >> page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >>
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