Doug,
If the battery charger has an Equalization Phase, then the charge
voltage will be between 15-16 volts. This is something that should be done
rarely (once every few months to once a year). Perhaps the the charger is
defective, or possibly it gets confused if the charger is shut off before
the equalization phase is complete and returns to that phase when
restarted. I think it is more likely that the charger is defective.
See:
http://shop.pkys.com/Battery-Equalization_ep_44.html
Gary
S/V Kaylarah
'90 C&C 37+
East Greenwich, RI, USA
~~~~~~~_/)~~~~~~
On Fri, Nov 11, 2016 at 11:06 PM, Douglas Mountjoy via CnC-List <
cnc-list@cnc-list.com> wrote:
>
> 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> 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> 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> 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/>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>>
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>>>>
>>>>
>>> _______________________________________________
>>>
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>>>
>>> _______________________________________________
>>>
>>> This list is supported by the generous donations of our members. If you
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>
> --
> Doug Mountjoy
> sv Pegasus
> LF38
> just west of Ballard, WA
>
>
> _______________________________________________
>
> 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!
>
>
_______________________________________________
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