I got a Qualcomm Q Phone 1900 at the swap meet. It came with a TABAT0201 battery and TADTC0201 desktop charger but not the AC wall adapter.
The bottom of the desktop charger states that the input should be 13 VDC 1000 ma (1 A).
What is the polarity? Would 12 VDC be close enough? I know it is an old phone.
I just want to see if it works. Can anyone help me?

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