24v charging thru slave port

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microjeep

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Just ordered the light duty slave plug, shipping to North Georgia was $3! gotta love a company that does business like that. have a several 12v battery tenders and one 24v model and sometimes the wife or one of my buddies like to "help me out" or borrow my stuff so i plan to permanently attach the plug to the charger so it shouldn't be wrongly used.
 

Triple Jim

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I know you're all set now with a nice way to charge, but here's an alternative I did a couple years ago. Since the charge current is low, I connected to +24v and ground inside the control cabinet of my 003A, putting a fuse in the + wire.

mep_charging_connector.jpgmep_charging_connector_inside.jpg
 

csheath

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FL
Howdy,
If you are looking for a solar panel kit which the military uses on equipment.

You can find the smaller Solargizer IS24L online out there.
View attachment 630336

/OR The larger PulseTech 24VPSC 735x640. (NSN 6130-1-487-0035) The solar panel is listed as 6.3 watts and is 9" x 11"
View attachment 630337
OH, the best way to use a solar panel = charge your batteries to there fullest using a charger, then use the solar charger to maintain and desulfate. Yes, the unit itself is a charger. But, to care for your batteries, have them in there best shape, and they will be maintained better. :)
My 803 came with the 24VPSC 735x640 installed. Most of the units on the lot had them. Mine will see very little direct sun because I placed it under a shed but the sun will peak in at certain times of the day.

solar-charger.jpg

I have solar panels connected to almost everything I have that may sit a while and has a battery. Just stuck one on the hood of my backhoe last week. Most of the dealers are now saying a 10w or smaller panel is safe to use without a controller so I am trying that theory on two of my 10w units.
 
Last edited:

Triple Jim

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Thanks Guy. It just seemed like a bit of overkill to use the enormous slave connector to connect my 4 amp charger. I think the connector might be bigger than my charger. :D

No insult to anyone who does use the slave connector. It's certainly high quality.
 

Daybreak

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Howdy,
Whichever way works for you.
I use the slave port since I am able to move the charger around between units.

Anything with a NATO slave port. Truck, HMMWV. Generator etc...
 

tburk49760

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Just ordered the light duty slave plug, shipping to North Georgia was $3! gotta love a company that does business like that. have a several 12v battery tenders and one 24v model and sometimes the wife or one of my buddies like to "help me out" or borrow my stuff so i plan to permanently attach the plug to the charger so it shouldn't be wrongly used.
Please tell me where you found this? I need several...
 

Daybreak

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Please tell me where you found this? I need several...
Howdy,
Read the thread. You can call the company and order the slave cable end. They sell different amperage pieces. The very light duty is what I am using. They also sell slave ends for using as jumpers, and they also sell complete nato jumpers. Saw a nice pallet with 6 Graywacke 500 amp jumper sets on GL about 6 months ago. New in the box. Did not need them, but that was a sweet pallet.

Graywacke Engineering Products
 

microjeep

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received slave plug today (3 days for 3 bucks can't beat that!) looks to be a high quality item, will test fit tomorrow and report back.
 

Daybreak

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Howdy,

Now after collecting a few green things, I really like having a charger which I can move around. I simply throw it on the slave port and walk away. Since it's a smart charger, I can leave it there a week or month or whatever.
 

FloridaAKM

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I just hook a Genius G7200 charger up to the port with one clip hooked to ground(-) & the other to a empty .50 cal shell in the positive(+) port & leave it till the green ball stays solid. One day I will the correct plug. The Deuce won't work this way since it has a dual port plug. A bolt takes place of the .50 cal shell in the positive(+) pin port. Never a problem.
 

gatorbob

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The slave port is a direct connection to the batteries.
I have a MEP-803A that was wired as a Tobyhanna tower unit. Will that slave port still give me a direct connection to the batteries? Honestly, I don't fully understand the Tobyhanna modification in the first place and it was undone by someone else.

thanks
 

smokem joe

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Green OH
I have a MEP-803A that was wired as a Tobyhanna tower unit. Will that slave port still give me a direct connection to the batteries? Honestly, I don't fully understand the Tobyhanna modification in the first place and it was undone by someone else.

thanks
I've removed this modification off of about half a dozen sets. It had nothing to do with the slave port. The slave port will get you 24v to the batteries
 

Daybreak

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Howdy,
That is also why in the manuals it says to remember that the 24v slave receptacle is always hot. The only time it is not hot is when you disconnect the batteries.

NOCO G7200 hooked up here. Every now and then I hook it directly to the batteries individually to make sure they are equal. 24 volt charging is nice, but you also need to check them to make sure each is up.

Charge 1 battery 12 volt agm style, then move it over to the other battery.
 
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