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› DNPower charger power supply?????
11-26-2006 06:26 AM  11 years agoPost 1
Murf

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Normal IL

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I just ordered one of the DN power chargers.What I noticed is it only has hook-ups for usind a 12v power supply. Can I get a wall plug in to work? What is the cheapest way to go. I want this portable so I can take it on trips. Any help would be great

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11-26-2006 07:14 AM  11 years agoPost 2
Two Left Thumbs

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Houston, Texas - USA

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You need a 12v source, either a power supply or a battery. You cannot plug the charger directly into wall current.

Figure out the highest current you will draw, and that will dictate the size of your supply. For example, a typical T-Rex battery is a 3s 2100mAh pack. If you charge it at 1C, that is 2.1A. So, you will need at least a 2.1A power supply. Due to losses, I would suggest at least a 3A supply.

3A is fairly small, look for at least a 5A power supply. Radio shack has them.

If you want to use a 12v battery, again do your calculations. If you want to charge 4 packs, and each pack requires 1.5Ah, that is 6Ah drawn from the battery. Depending on the battery type, you should not drain it more than 50%, so you would need at least a 12Ah battery.

Or course, now you need a way to charge your field battery, so you need a power supply for your charger

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11-26-2006 01:00 PM  11 years agoPost 3
scott sr

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I would get the 15amp from radio shack it isn't that much and if you get a bigger charger you are covered and it will be great for the one you have now also . JMHO

Scott Sr. ><> ****Support Our Troops**** ><>

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11-26-2006 02:09 PM  11 years agoPost 4
playfair

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Rochester, NY

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I have the same charger and use a 5A switching power supply that came from a surplus place for it and my Triton. I put connectors on so it can be plugged into the supply, lighter cord, or aligator clips. Never had a problem charging up to 2A on either.

I also like a light, compact setup that can be easilly moved around. The supply is actually attached to the bottom of each charger, and being a "switcher" it isn't heavy:

Here's a small one that was made to power an LCD monitor which should work:
http://www.mini-box.com/60w-12v-5A-...ter?category=13

There's also lots of info on here about using PC supplies if space/weight isn't an issue.

If you want one like mine, I believe I have a backup I'd could sell (PM me).
Weird thing about the DN charger is I have to plug the PS into the wall first, then the charger into the PS (something to do with starting load?). No biggy though.


The sky is our canvas

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11-26-2006 03:32 PM  11 years agoPost 5
scott sr

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I am sure you can use the smaller one . What I was saying if you get a 15 amp power supply your not held back latter if you want to get a bigger charger . That way you don't have to get the bigger charger and then also have to get a bigger power supply . The price difference is small enough that you can get the bigger supply and it won't break the bank . That was my reasoning to get the bigger supply . Hope I explained that good enough and didn't confuse you . Good Luck .

Scott Sr. ><> ****Support Our Troops**** ><>

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11-26-2006 04:54 PM  11 years agoPost 6
Two Left Thumbs

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Houston, Texas - USA

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Yep, that is the way with this hobby. If they sell a bigger better one, you are often better off buying it from the start. I wouldn't mind having an extra 12v power supply though, they come in handy.

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11-26-2006 05:00 PM  11 years agoPost 7
Murf

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Normal IL

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I ended up finding one that is made by DN power just for this charger. Thanks to all who helped me. What a great forum!!!

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