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There is a cigarette lighter plug in the rear of my 2016 C7. Is that where you can plug in a trickle charger during storage periods to keep the battery hot? What is the best trickle charger to buy?
There are 2 places to easily hook up a battery maintainer. One place is the one you asked about. The other is around the engine room fuse box. The firewall side of the fuse box has a spot that is hot and directly connected to the battery in the rear of the car. You cannot jump the battery from the engine location but you can hook up a battery maintainer,
C-Tek seems to be the soup du jour for maintainers.
Most just gently close the hatch or trunk on the cord. Personally, I HATE to squeeze an electrical cord for ANY reason especially for extended periods of time. Were I to store my car for the winter, I would do this: http://www.ls2.com/forums/showthread...hlight=battery
As it is, I live in Florida and drive the car year round. I still slap the car on the C-Tek when I park in the garage. I just like to have the battery topped off at all times. There are a lot of days where I do nothing but short trips and might not get the battery fully recharged before I park it for the night.