Topic: Energizer ER-DVD-max > UA-5 ?

[Meat]

First off this is model:
http://www.energizerbatteries.com/productdetail.asp?device=DVD&prodcode=30102

The battery has one outlet for the charger. Then it also has a built-in female power chord. However, the two holes at the end of the power chord have two different circumferences.

Is this a proprietary feature that will prevent me from inserting the B tip backwards?

 - or -

Can I just plug the RS B>Chord>M into the charger's outlet?

If necessary, I could send pictures for clarification.

Thanks!