I live in a condo where there's no access to a 120V AC outlet, but I'd like to give the battery a little extra charge while it's sitting (sometimes, even after a weekend, it cranks slow...)
I've considered the following:
1) traditional battery maintainer -- won't work, since I don't have a 120V AC outlet nearby, and won't be able to install one
2) solar battery maintainer -- underground; so won't work either
So... question is... is there a battery powered maintainer (one that I can bring into my condo to charge once a week or so, then bring back out and connect via the cigarette socket?); or any other interesting solutions that would work?
Thanks!
I always carry a battery jumper/ air compressor that has a 12 volt lighter outlet. I have used it several times to charge cell phones in a power outage....using almost none of the batterie's power. If you can keep the battery charged with a maintainer that plugs into the lighter it should not be too hard to make up a double ended plug and leave the jumper plugged in.
I think this jumper/compressor came from PepBoys.
Could use the jumper with a small inverter powering the maintainer. :semihilarious:
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I was thinking about two cell phone charger plugs with a USB cord between them...or just wire together a pair of 12volt plugs.
Is there a battery maintainer that would take input from a 12V DC portable battery and output it to the 12V DC cigarette port in the console? <-- that's what you were envisioning right?
Or you could plug an inverter into one cig lighter, plug the
CTEK
into the inverter, and then plug the
CTEK
into the other cig lighter. Easiest with the smoker's package.
:hilarious:
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I thought my battery was cranking slow... did the battery maintainer thing, and it didn't help. Took my 2012 Cayman with 11,000 miles on it to the dealer and they said it needed a new clutch starter switch. 15 minute easy fix by the dealer, car cranks 100% better. I was told its a common part to fail, my neighbor had his Boxster in at 3500 miles for the same problem (originally he thought it was a weak battery).
I guess you can use a foreign battery and hook it in parallel with your car battery for it to transfer the power from one to another. The question is which battery is charging which battery?
I had thought about this too... and yes, I reached the same conclusion -- would this get me better or worse off?
Im pretty sure it takes more than 12V to charge a 12 volt battery. You have to have some higher voltage to "force" the charge in. Hence, the approx 14 volts alternator output.
Two batteries hooked up in parallel will only have two batteries get weak together.
