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The Norfolk Broads Forum / Broads Boat Owners Q & A / Battery charging
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Posted By Discussion Topic: Battery charging

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Paladine
Nov-30-2021 @ 11:41 AM                           Permalink
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FWIW, I've never had to have either of my Ctek units repaired.

Just sayin'.

Been hit by another boat? Report the incident to the Marine Accident Investigation Branch’s dedicated accident reporting line on 023 8023 2527 which is monitored 24 hours a day.  Help to make the Broads safer.

This message was edited by Paladine on Nov-30-21 @ 11:41 AM

pargeandmarge
Nov-30-2021 @ 12:20 PM                           Permalink
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Hi All
Victron 30 amp 3 port on the boat one port to domestic bank 3 x 120 amp AGM. One port to starter battery sealed 110 amp. A spare port for a bow thruster battery should someone wish to fund the installation for me Smile

In the workshop at home a C TECK I think it's a 15 amp with all the different battery types.

To be honest both systems are brilliant.

Edited to say The workshop charger is not a C Teck it is a Nocco Genius G7200 it does all different battery types and you can leave it on a battery and it will keep the battery in a good charged condition.
Regards again
Marge and Parge

Kindest Regards and thankyou Richard and all you Mods for all you do.
Marge and Parge




This message was edited by pargeandmarge on Dec-1-21 @ 11:21 AM

hedgehog
Nov-30-2021 @ 12:22 PM                           Permalink
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this system incorporates battery charging system and invertor



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BuffaloBill
Nov-30-2021 @ 5:22 PM                           Permalink
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Mardles sometimes
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Nice job there Hedgehog.....  Playful Wink  

The older I get...
The better I was....!!

pirate
Dec-02-2021 @ 7:49 PM                           Permalink
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Thanks for the replies.

We have a bank of 3 110 amp for domestic and seperate starter the domestic also being charged by a solar panel.

Looks like 20amp 3 port charger will do our requirements leaving a spare output for possible future additions.

Cheers

Andy

annville
Dec-03-2021 @ 12:16 PM                           Permalink
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Hi Andy a twenty amp charger won't be big enough to charge the battery bank 3x110=330 amp at 10 amp rate min of thirty five amp charger needed, a 50amp two port charger would be most suitable. John

Luise
Dec-03-2021 @ 3:17 PM                           Permalink
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“Hi Andy a twenty amp charger won't be big enough to charge the battery bank”

I’m no expert, but my boat’s OE installation would tend to agree: it’s only a littl’un with two 85 Ah gel batteries for the domestic circuit and a 90 Ah AGM starter battery, but the manufacturers installed a 60A/1200 W charger/inverter.

Peter

L'sBelles
Dec-03-2021 @ 4:59 PM                           Permalink
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Charger manufacturer is really down to personal preference. You cannot go far wrong with one of the reputable brands already mentioned.
As for capacity, whatever you have is never enough long term so buy the largest capacity you are prepared to afford at this moment in order to give you some future proofing.
When you compare different chargers make sure you are comparing like with like. For example, a 20 A charger can supply 20 A but how does it split that when charging different banks of batteries simultaneously? Your starter battery will not get much use presumably so that one will be fine on a trickle charge of a couple of amps while your 330 Ah domestic bank shall require most of the charger capacity a lot of the time.
Another useful feature is to have the different channels independently selectable for battery type. Unfortunately my charger has all of the battery types available but all 3 outputs have to be set for the same battery type. A bit of a pain as it means I have to have an AGM battery as my starter when it is not necessary. In retrospect, a bit more research in advance of parting with cash may have been useful but I cannot resist a bargain priced new and unused charger on a well known online auction site!  Smile
As a final note, I have a 50 A charger with 3 outputs for a 110 Ah starter battery and a bank of two 110 Ah domestic batteries which seems adequate but then it is rare for us to spend more than one night in one place so running the engine helps and the charger is clever enough not to split the capacity equally but directs what it can to the appropriate battery bank.



This message was edited by L'sBelles on Dec-3-21 @ 5:02 PM

pirate
Dec-21-2021 @ 12:45 PM                           Permalink
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Hi Thanks for all feedback, I will want to use 2 feeds from the unit, 1 domestic and 1 engine but the common unit has 3 feeds. What do people do with the third ? not use it or link it to one one of the others.

Happy Xmas

Andy

annville
Dec-21-2021 @ 1:22 PM                           Permalink
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Hi Andy just leave it disconnected, just make sure that the bare terminals are protected and nuts lightly tightened,lightly smear all terminals with vaseline to stop corrosion. if you join them together the unit will not work correctly, Do you not have the instruction manual?. John

L'sBelles
Dec-21-2021 @ 6:11 PM                           Permalink
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As John says you should not connect the outputs together otherwise as a minimum you shall lose the "intelligence" of the charger and at worst you might actually damage it.
Just leave spare outputs unconnected if you have no immediate use for them.

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