How do you distinguish your 3.7v chargers from you 7.4v chargers?

I'm just looking for some creative input here. All the sabers I've built are 7.4v, so I have a few of the smart chargers floating around (http://www.thecustomsabershop.com/74...plug-P891.aspx).

I'm about to build my first 3.7v saber, and I'll obviously be using a different charger (http://www.thecustomsabershop.com/37...plug-P890.aspx)

I can't be the only person who will have both chargers lying around. Yes, I realize the voltage is on the back of each one, but I'm curious if anyone has any creative means of identifying their chargers so they can just grab the right one at a glance.

The idea I'm tossing around is using a 1.3mm port for my 3.7v saber(s) and just change the charger to end in a 1.3mm jack. That would definitely make it impossible for me (or anyone else, which is what I'm worried about) to use the wrong charger for the wrong saber.

Thoughts?

Mark or paint one of them?

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Originally Posted by Seth Skywalker

Mark or paint one of them?

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Right, I'm just looking for creative input on how, specifically, people mark or paint them.

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Originally Posted by cvsickle

Right, I'm just looking for creative input on how, specifically, people mark or paint them.

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It's got some nice groves on the charging block. Painting those would actually add a nice touch. For example, you could mask of everything except for the grooved area. And then put the paint on, and sand the paint off with a sanding block. That way only the grooves will be red.

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Originally Posted by Seth Skywalker

It's got some nice groves on the charging block. Painting those would actually add a nice touch. For example, you could mask of everything except for the grooved area. And then put the paint on, and sand the paint off with a sanding block. That way only the grooves will be red.

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That would be pretty cool.

Well, I decided to try it with a waterproof marker, but it's barely visible. Spray or acrylic paint would be better.

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Originally Posted by Seth Skywalker

Well, I decided to try it with a waterproof marker, but it's barely visible. Spray or acrylic paint would be better.

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Hmm... I wonder if one of the silver or gold sharpies would do the trick. Wouldn't look as good as a bright red or orange paint, but it may do the trick.

Grab a label maker (or just a piece of tape) and fold it over the wire near the plug. It should look like a little flag. The flag can be labeled with the appropriate voltage, and you'll always see it when you go to plug in the saber.

I've only used the smart chargers with adjustable voltages. When I've given them to others (along with a saber) whom I know will most likely only own one custom saber for the rest of their lives, I put a label on the charger and on at least 3 sides of the charger's box, that states "3.7V Only". I have used labels from a mechanical label maker as well as ones printed out on a standard printer and then taped on.

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Originally Posted by cvsickle

Hmm... I wonder if one of the silver or gold sharpies would do the trick. Wouldn't look as good as a bright red or orange paint, but it may do the trick.

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I mark all of my DC adapters like this. Silver works well.