To the best of my knowledge a 12v battery charger should not go over 14.6 or so. If it is goig to 15 to 16 volts I would be getting a new charger. A friend had this happen with a mastervolt unit and fried his house bank of 2 T105 6v.
Doug Mountjoy SvPegasus LF38 #4 On Friday, November 11, 2016, Josh Muckley via CnC-List < cnc-list@cnc-list.com> wrote: > The only single bank ProSport systems are 6amps. That is pretty small > compared to the total capacity of your bank. ~1%. I can't explain it but > maybe that's part of the problem. Sometimes certain switching power > supplys need a load for them to work properly. A large enough bank and a > small enough charger may act the same way. > > Did you wire it directly to the battery terminals? Or did you go to a > nearby bus bar or previous feeder wire? > > I would also like to know what a Multimeter reads at the charger terminals > and what the meter reads at the battery terminals (if they aren't the > same). I'm wondering if maybe the charger isn't sensing the same voltage > as the boat's meter and the battery. > > Josh > > On Nov 11, 2016 5:20 PM, "Edd Schillay via CnC-List" < > cnc-list@cnc-list.com > <javascript:_e(%7B%7D,'cvml','cnc-list@cnc-list.com');>> wrote: > >> It’s one of these: http://www.promariner.com/en/43006 >> >> >> >> >> >> On Nov 11, 2016, at 5:17 PM, Dennis C. via CnC-List < >> cnc-list@cnc-list.com >> <javascript:_e(%7B%7D,'cvml','cnc-list@cnc-list.com');>> wrote: >> >> Is it a two bank charger? If so, are both charging circuits connected to >> the batteries; one to the house bank and one to the start battery? If so, >> disconnect the one to the start battery and see how that works. Let the >> ACR charger the start bank. >> >> I think some chargers don't like to be wired to two banks when there's an >> ACR or echo charger between the banks. >> >> Dennis C. >> >> On Fri, Nov 11, 2016 at 3:19 PM, Edd Schillay via CnC-List < >> cnc-list@cnc-list.com >> <javascript:_e(%7B%7D,'cvml','cnc-list@cnc-list.com');>> wrote: >> >>> OK — So here’s what happens. And this may be OK, but somehow it feels >>> like it’s not — please let me know. >>> >>> I plug into shore power and turn on the battery charger. It’s a ProSport >>> and it’s hooked up to the House Bank, a set of flooded batteries. Within a >>> few moments, the voltage goes over 13 volts and the ACR kicks in, linking >>> the house bank to the starting battery, a sealed starting battery. >>> >>> After a few hours, the voltage on both battery banks are reading well >>> into 15-16V, which makes me worried and I shut it off. >>> >>> I could turn the ACR off when using the charger, but that really, in my >>> mind, defeats the purpose. >>> >>> Any thoughts? >>> >>> All the best, >>> >>> Edd >>> >>> >>> Edd M. Schillay >>> Starship Enterprise >>> C&C 37+ | Sail No: NCC-1701-B >>> City Island, NY >>> Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> >>> This list is supported by the generous donations of our members. If you >>> wish to make a contribution to offset our costs, please go to: >>> https://www.paypal.me/stumurray >>> >>> All Contributions are greatly appreciated! >>> >>> >> _______________________________________________ >> >> This list is supported by the generous donations of our members. If you >> wish to make a contribution to offset our costs, please go to: >> https://www.paypal.me/stumurray >> >> All Contributions are greatly appreciated! >> >> >> >> _______________________________________________ >> >> This list is supported by the generous donations of our members. If you >> wish to make a contribution to offset our costs, please go to: >> https://www.paypal.me/stumurray >> >> All Contributions are greatly appreciated! >> >> -- Doug Mountjoy sv Pegasus LF38 just west of Ballard, WA
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