On Thu, 14 Nov 2019 01:34:06 +0000 (UTC), danny burstein
wrote:

In Clare Snyder writes:

I've actually got a real use for even an... 18 gauge 100 foot
cord. Namely a Battery Tender brand name Battery Tender
to reach my car outside the home.

(I'm actually using a series of 14 gauge)

It pumps out 3 amps at 12V, takes in about 80 watts...

Car outdoors? Put a solar tender on it -around here the chippies would
finish off the cord

nah, not a "leave it for weeks" deal. Just an overnight or so
recharge it after, well, umm, someone... someone... left the
overhead lights on...

Yup you are right, you need a real charger. I doubt you will find an
18 gauge cord tho unless you set the way back machine to some time
before the 80s when U/L stopped listing 18 gauge cordsets with
receptacles on them. The smallest listed extension cord you can get
is 16 gauge.