Just recovered my standard C558 ht's after a *long* period of storage
(forgot which box I put them in).

Can anyone advise the voltage and polarity for charging the standard
batteries that have the little charging input on the side? I have about 35
wall warts, and don't recall which one I used to charge thestock batteries.

Thanks in advance

Negative tip, 9.4v 80mA, CWC150
Loved mine. Want to buy another, if I can find one!