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Connecting ProMariner onboard battery charger to dock power

Old 04-06-2015, 12:17 PM
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Default Connecting ProMariner onboard battery charger to dock power

I have a ProMariner ProTournament 200 and need to keep it plugged in to my marina's dock power while the boat is not in use to keep the batteries properly maintained. Currently, my center console has a standard three prong 15a male input on the side of the console and is connected directly to the onboard charger.

What is the best way to go about connecting the charger to the 30a power at the dock?

1. EEL Cordset, 30A 125V, Yellow, 12' to Dockside 30A to 15A Adapter with GFCI, 30A Locking Plug to 15A Connector then get a short 15a male to female cord? (is this even allowed or do all wires connected from a dock to a boat required to be locking connectors)

2. EEL Cordset, 30A 125V, Yellow, 12' to One Piece Adapter with a 15 or 20A 125V Straight Blade Connector and a 30A 125V Locking Plug (does a fuse need to be in between the charger and the dock power outlet, if so what should be used?HDBFH Inline Heavy-Duty Fuse Holder?)

3. EEL Cordset, 30A 125V, Yellow, 12' to 30 Amp/125V Cast 316 Stainless Steel Power Inlet (does a fuse need to be in between the charger and the dock power outlet, if so what should be used? HDBFH Inline Heavy-Duty Fuse Holder?)

Any advice would be greatly appreciated.
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Old 04-06-2015, 01:22 PM
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I'm assuming from the cords you mentioned that your distance is less than 12'. I would go with a Marinco 105SPP Pigtail Adapter 15A female To 30A male and then use an outdoor rated 15 or 20 amp power cord. Marinco makes a 35 foot cord with a 30 amp male and a 15 amp female outlet; but, I don't think there's any need to spend the money for that.
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Old 04-06-2015, 01:44 PM
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Hi @MCPD199,

Thanks for chiming in. Are most marinas okay with having 15/20 amp cord running down the dock that doesn't have a way to lock in place (to the pigtail adapter)? If not, what would be an alternative option?

How about this (MARINCO EEL ShorePower™ Cordset, 30A/125V, 50', Yellow + MARINCO EEL Pigtail Adapter, 30A M-15A F with Light)?




Is a fuse needed in between the battery charger and and outlet on the dock?
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Old 04-06-2015, 01:59 PM
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I'm confused...might have missed something in your post...

you say your boat has a 15A receptacle...how is this receptacle powered? do you have a shorepower system installed in the boat?
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Old 04-06-2015, 02:13 PM
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Hi chainsaw42,

No, I do not have a shorepower system installed in the boat. The other end of the 15a receptacle is connected to a ProMariner onboard charger.


Last edited by sfjtm; 04-06-2015 at 02:42 PM.
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Old 05-06-2015, 01:37 AM
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I am bumping this thread as I have the same issue this year. New marina, they only have the standard 30A shore power outlets and have an onboard charging system that has the standard household male plug that i have always just plugged into a normal outdoor extension cord.

I know they make the pigtail adapters, i have heard that these are not ideal for long term use, but only for power tools at the dock, etc.

Any advice?
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Old 05-06-2015, 04:35 AM
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Is your 15A male plug in a dry location on the boat? If it is then the problem I would see is that you will have 15A rated wiring/plugs on a 30A circuit. You could ask the marina to switch out the 30A breaker on the pedestal for a 15A...
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Old 05-06-2015, 10:18 AM
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I'm sure the marina will change out their receptacles for you from 30a to 15/20a. Just buy the 30a male to 15a female adapter and be done with it, their about 50 bucks. You just plug in the adapter at the dock box (marina side) and plug in your extension cord and connect up to your charger.If your only plugging in the charger it should have it's own over current protection built in so you won't overload your cord. Common issue for boats in slips at marina.
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