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Author Topic: Boat charger/power supply advice  (Read 899 times)

g6swj

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Boat charger/power supply advice
« on: June 12, 2016, 06:05:50 pm »

Hello,

I am seeking guidance/words of advice/things I should take into account. I have posted this as "chit chat" as it does not relate to model boats but a real boat.

I need to replace the charger on my boat. I have 3 x 100amp/hour 12v batteries on board. 1 battery for engine and 2 wired in parallel for domestic power.

As a fitted replacement will run into high hundreds of beer tokens I don't want to get it wrong. I am considering a new Sterling charger but they come in several different capacities

So I have on my deliberation/consideration list.

  • Voltage available on pontoon (take into account voltage drops)
  • Mains amps that can be delivered before pontoon power trips
  • Possible use in the future of generator to supply charger (Generator Watts Output vs. charger input needs)
  • Power supply power input requirement watts
  • Power supply output ( not depleting batteries when on shore power) - needs to be able to run domestic equipment 2 x fridges, hot water heater, lighting etc

What else should I be thinking about - thank you for your help in advance

Regards
Jonathan
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grendel

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Re: Boat charger/power supply advice
« Reply #1 on: June 12, 2016, 06:46:22 pm »

I would definitely look at the CTEK smart chargers. the sterlings are also highly reccomended
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david48

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Re: Boat charger/power supply advice
« Reply #2 on: June 13, 2016, 01:59:50 am »

Have you had a look ar Victron , then there is Mastervoilt , talk to Greenham Regis thy will put you on the right path . Mastervoilt is the bees knees , lots of beer no champagne tokens. Have you a galvanic isolator fitted . That helps with stray voltage when on shore power .
David
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Tombsy

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Re: Boat charger/power supply advice
« Reply #3 on: June 15, 2016, 04:12:27 pm »

Do you have any room for a solar panel? I have one 160 w panel that does a great job keeping my two 100 ah domestic and one 100 ah starting batteries topped up on my motorhome. But you need some sun :).
I think the biggest challenge are the two domestic fridges, you need to calculate the amp draw and get the appropriate size inverter.
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Brian
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