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Battery Charger Question

Old 01-14-2019, 11:47 AM
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I've got an onboard battery charger (ProMariner Pro Tournament 360 Elite) on my 24'cc that I use to charge my two batteries with the battery switch set to off as instructed when I bought the boat.
Is there any reason why I can't turn on a battery, say no.1, and run my bait well overnight.
Essentially using it as dockside wiring? Thanks
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Old 01-14-2019, 11:52 AM
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those chargers do not like to be used as power supplies. They sense battery condition and cycle their charge output. asking for it to give you a constant current output may not work for long period of time.
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Old 01-14-2019, 02:05 PM
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Originally Posted by Heyeddie View Post
I've got an onboard battery charger (ProMariner Pro Tournament 360 Elite) on my 24'cc that I use to charge my two batteries with the battery switch set to off as instructed when I bought the boat.
Is there any reason why I can't turn on a battery, say no.1, and run my bait well overnight.
Essentially using it as dockside wiring? Thanks
First you would need to calculate whether the charger can provide more power than what the pump would be using? Its possible to deplete batteries even with a charge on in some configurations.

Second is the question of whether its safe for the charger to operate in a higher power output continuously. Perhaps a questions best asked to the battery charger manufacturer.

Third is finding out if its safe to operate the pump continuously for extended periods of time. Perhaps a question best asked to the pump manufacturer.

I generally do not like leaving electrical and pumps running on my boat when I am not present. There are all sorts of risks for electrical fires, overheating (i.e. pump gets clogged or impeller breaks), flooding (i.e. hose comes undone and the pump fills your boat up with water), etc.
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Old 01-14-2019, 03:00 PM
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Promariner's pronautic line of dry mount chargers are designed to be used as power supplies as well as battery chargers.

I'm not aware of any manufacturer of water-proof chargers that recommend their product be used as a power supply. Noco specifically has told me they do not recommend their genius charger be used with any electrical draw.
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Old 01-14-2019, 05:24 PM
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Correct, no wet mount charger is designed for a constant draw. In fact, many of them will shut down if the battery does not reach full charge within 24 hours.
Powermania has stated their charger can occasionally be used as a power supply but I don’t know if that is too long.
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Old 02-13-2019, 07:53 PM
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Originally Posted by Heyeddie View Post
I've got an onboard battery charger (ProMariner Pro Tournament 360 Elite) on my 24'cc that I use to charge my two batteries with the battery switch set to off as instructed when I bought the boat.
Is there any reason why I can't turn on a battery, say no.1, and run my bait well overnight.
Essentially using it as dockside wiring? Thanks

I don't know that I am the right person to answer this as I am in the process of replacing my charger. However, the SamlexAmerica SEC-1215UL charger literature that I have says it can be used as a UPS and can connect to battery that is under load. There is just a jumper that needs to be switched over to prevent over-charging. I think that I used it without switching the jumper (didn't fully understand how it works) and that's why I will be buying a new one.

"Can be used as a power supply or as a DC UPS (Uninterruptible DC Power Supply) when used with a battery (DIP Switch set at "Battery with load" - See Section 5, Tables 5.1 and 5.2 for instructions)"
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