So I bought a solar panel

OK, so I bought a little 20W solar panel off amazon to start tinkering and learning solar power. I have the panel itself, the little charge controller, and I plan to get a AA/AAA battery charger with a car adapter, and a 12V automotive socket. The instructions with this little panel were ... ah ... "sparse" to say the least.

My instinct tells me
Red goes to + always
Black goes to - always

Red panel wire to solar +
Black panel wire to solar -
Red cigarette socket wire to load +
Black cigarette socket wire to load -
Plug AA/AAA battery charger unit into cigarette socket
Put batteries in AA/AAA battery charger
Put panel into direct sunlight.

Am I going wrong?

Many thanks,
--K

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So I bought a solar panel