Cordless Dustbuster, Charging Reversed Polarity?

Hi,



Upgraded my cordless Dustbusters at home with the new CHV1410 model, it works great except what was my surprise when I found out Black & Decker is no longer making Dustbusters that charge automatically on the wall mount.



Instead (and I was told this by their customer support when I called them) ALL the new models have a DC plug. I hate these, not only do you have to take the extra step of plugging in the vaccum each time when you hang it on the wall... mine being mounted down inside a bathroom cabinet, this makes it a pain hunting for the wire... but these DC plugs are weak, I've seen them give out with daily repeated plug-in-unplug use.



I decided to wire up the old style wall charger on the new vaccuum, using a few of the parts from the old dustbuster. I figured out how to do it (its not as hard as it sounds) but I was wondering about the polarity of the charger. If you hook the DC charger up to the wall mount backwards, will it destroy the battery? How do you verify which wire goes on which side.



Thanks for any advice - jeffpas
      


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