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battery charger

Old 08-30-2014, 06:41 PM
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Default battery charger

My question is...has anyone mounted a dry mount charger in their boat. I have spoken to Jason. .charger guy...who has been great. Thoughts on the dry mount. ..and from my understanding. ..you have to add the wires to it...the it doesn't come already set up ???..I am either going with a pro mount 20..wet charger or the dry...and it will be charging 3 batteries. Thank you for your help.

Mark
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Old 08-31-2014, 05:08 AM
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Mark,

Dry mount chargers do not include any wiring at all. The reason is each setup is different for a dry mount. Often used to power cruisers or any boat where you need to use shore power while charging, the cable variations are endless. Unlike waterproof for a smaller boat which includes cables ( because they are going to be installed next to the batteries 90% of the time), dry mounts could go on a 20' cruiser or a 70' yacht. The cable variations would would expensive and different, making it tough to include all cable variations.

The parts are readily available from most marine store. You need the wire to be marine grade tinned and stranded. The length of the run determines the gauge wire to get. Keep in mind that the length of the run is not just the distance of one cable from the charger to the battery, but times TWO. So a 10 foot pos cable and a 10 foot negative cable means you have a 20' run and need to get the gauge wire for 20'. not 10'.
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Old 09-01-2014, 09:14 PM
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Has anyone ever put a dry mounted charger in...and so..how did they hook up the cables to the unit...was it easy..and pics..
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Old 09-02-2014, 04:46 AM
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No pics, but it is easy. You strip the wire off the end, put it into the charger, and screw the post down to hold the wire securely. Done, move onto the next wire.
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Old 09-02-2014, 05:35 AM
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Do they come with the plug already attached like a wet charger.
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Old 09-02-2014, 06:16 AM
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No, because the applications vary. Is the charger on the side of the boat or in the middle? etc Usually 14 AWG marine grade wire for the AC is fine for up to a 25 foot run, but each manual should say specifically.

To clarify for anyone reading this, a dry mount is 100% necessary when you are using shore power and charging at the same time. If you are just overnight charging with no draw while charging, a waterproof would be fine.
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Old 09-02-2014, 01:17 PM
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I want to put the head unit in the console and run the wires to the back of the boat. I want the to be able to plug it in at the console. I estimate the distance from console to the 3 battery's is about 15 feet or so...
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Old 09-02-2014, 04:51 PM
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Originally Posted by Magnanimous View Post
I want to put the head unit in the console and run the wires to the back of the boat. I want the to be able to plug it in at the console. I estimate the distance from console to the 3 battery's is about 15 feet or so...
Which amp charger did you want to consider?
FYI a 15' cable is actually a 30' run because electricity goes out and comes back.
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Old 09-02-2014, 06:00 PM
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Something that can handle two group 24 starting batteries and one 27 house....I have no clue on amps...sorry
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Old 09-02-2014, 09:54 PM
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Originally Posted by ChargerGuy View Post

To clarify for anyone reading this, a dry mount is 100% necessary when you are using shore power and charging at the same time. If you are just overnight charging with no draw while charging, a waterproof would be fine.
what?... either is fine for either.
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Old 09-03-2014, 04:52 AM
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Originally Posted by Magnanimous View Post
Something that can handle two group 24 starting batteries and one 27 house....I have no clue on amps...sorry
You can use a 20 amp ProTech i, the one I have on sale for $2 ($79 on ebay). 6 AWG wire is suggested.
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Old 09-03-2014, 04:54 AM
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Originally Posted by smac999 View Post
what?... either is fine for either.
If the power draw is say 1 amp or 2, you could use a waterproof sealed charger. Anything more than that and it will kill the lifespan of most of them. It is not to say that it would not work, but they are not designed for that. You are looking at a few months, tops, worth of regular weekend use before they die, on average.

Dry mounts are fan cooled units designed to supply power while charging at their full amp rating. If waterproof could supply shore power while charging, then all battery chargers would be waterproof. There are two different types because the applications are different.

Last edited by ChargerGuy; 09-03-2014 at 05:27 AM.
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Old 09-03-2014, 06:10 AM
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6 awg wire for both leads
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Old 09-03-2014, 06:29 AM
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6 awg for all the DC lines. 14 AWG for AC.
Your run is long, thus you need thick cable. Each pos terminal end needs an inline fuse within 7" of the battery post as well.
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Old 09-03-2014, 10:42 AM
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LOL..this is a lot of work...I think I would be better off with a wet charger and unplug it if I am gonna run the radio and other stuff at the dock....then just plug the charger back in....lol..no fuss no muss
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Old 09-03-2014, 11:31 AM
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Originally Posted by Magnanimous View Post
LOL..this is a lot of work...I think I would be better off with a wet charger and unplug it if I am gonna run the radio and other stuff at the dock....then just plug the charger back in....lol..no fuss no muss
If you do not need shore power while charging, then you are 100% correct.
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Old 09-09-2014, 01:54 PM
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Charger guy...can you get a dry mount charger in a 4 bank charger
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Old 09-09-2014, 01:55 PM
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Can you get a dry mount charger in a 4 bank charger. .
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Old 09-09-2014, 05:28 PM
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Originally Posted by Magnanimous View Post
Charger guy...can you get a dry mount charger in a 4 bank charger
Not part of my common stock. They are out there, but cost usually jumps up much, much more than buying TWO 3 bank units at my prices.
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