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Trying to understand my electrics


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I'm in the process of taking over maintenance of a lovely narrow boat that my dad's getting too old for unfortunately. I'm very much a newbie and the kindness of local boat people has got me pretty far. However, while I've managed to install a new leisure battery and so have power, I need to do some maintenance that means plugging in a drill, but none of the 240v sockets work.

 

I've tried flipping the switch on this control, but it had no effect. With each setting I continue to get power from the battery, but never via the sockets.

 

Am I warm, or barking up completely the wrong tree?

 

20210728_194238.jpg.9ac3cf145096e5cc25779a1984192bea.jpg

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Welcome Rob.

 

From the labelling, I suspect that switch is for selecting either the on-board inverter (device for converting 12Vdc battery power into 230Vac mains), or the shoreline (long cable you plug in to a power bollard on the bank, usually next to a marina mooring). 

 

I suggest next, you need to find the inverter and investigate that. It might simply need turning ON. 

 

Or, find the shoreline and plug it into a power bollard.

 

 

Edited by MtB
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Yes as MTB says that is just a selector switch. The inverter is not normally left on since it uses quite a bit of current even with nothing plugged into it. Therefore as said, find the inverter and switch it on.

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8 minutes ago, MtB said:

Welcome Rob.

 

From the labelling, I suspect that switch is for selecting either the on-board inverter (device for converting 12Vdc battery power into 230Vac mains), or the shoreline (long cable you plug in to a power bollard on the bank, usually next to a marina mooring). 

 

I suggest next, you need to find the inverter and investigate that. It might simply need turning ON. 

 

Or, find the shoreline and plug it into a power bollard.

 

 

Nice to see you back :)

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If running off the inverter make sure you don't kill the battery by taking too much power from it and you will need to charge it back up after using the drill. If you are in a marina it would be better to use the shore power connection.

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32 minutes ago, Rob-M said:

If running off the inverter make sure you don't kill the battery by taking too much power from it and you will need to charge it back up after using the drill. If you are in a marina it would be better to use the shore power connection.

 

Thanks for all the responses. I'm moored at a marina, but not one with a shore power connection. What's the "drill"? Do you just mean running the usual power-up routine (in my case 3 solar panels and occasional cruising)?

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3 minutes ago, Rob K, Waterbeach said:

 

Thanks for all the responses. I'm moored at a marina, but not one with a shore power connection. What's the "drill"? Do you just mean running the usual power-up routine (in my case 3 solar panels and occasional cruising)?

The drill is the thing you mentioned in your opening post!

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What means of charging do you have for your (single?) leisure battery? Any use of the inverter will take power out and you need to recharge it fully if it is to have any reasonable life. If the boat engine is your only means of charging you will need to run it for hours to get the last bit of charge in. Leaving the battery partly discharged will shorten its life significantly. 

 

For doing minor jobs which need a drill I find that using a cordless drill and recharging it at home is often easier.

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That's good as the solar will keep your battery charged at this time of year. It's also good for pushing in the last few Ah over a long period of time, when you wouldn't want to be running the engine or a generator. 

In winter it should counter the normal slow loss of charge from the battery, but won't produce any significant surplus for anything else.

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