Battery Charger Problem
 

I'm running into a bit off an odd problem with my battery charger. When I use my large connector end to charge batteries, there's no issue. I recently had to make a small connector end so I could charge smaller batteries, but every time now it keeps telling me that the polarity is reversed.

All I did was solder on a deans connector onto the opposite end of the small connector wire. Everything lines up, red to red, black to black but still tells me that the polarity is reversed.

Any idea what the hell I did wrong?

Well, small airsoft batteries and normal batteries with a small connector actually have the polarity opposite. But if the black-black goes straight from charger to battery, I don't know.

What kind of charger are you using?

It's the X-Charger B6.