Nate Nagel wrote:

what is the external battery pack connector called? I should know this
but my brain isn't helping, and I'm not coming up with the right search
keywords either. I have a few battery chargers for rechargeable
batteries; rather than using a wall wart for each I was going to take
12VDC from my UPS since the chargers all need to be plugged into the UPS
when in use anyway.

thanks

Nate
--
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Post a picture somewhere as there are dozens of different "battery"
connectors. Molex, AMP Mate and lock, Anderson Power Pole, various
"coaxial" styles, etc.