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Do you guys use a battery tender?

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Old 06-29-2017, 01:15 PM
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tq.3z
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Default Do you guys use a battery tender?

I know a lot of us probably let our cars sit in the garage but I had a few questions -

Are you guys using a tender? Any recommendations?

Would disconnecting the battery be okay?

I'll most likely be letting the car sit 2-3 weeks at a time (Work keeps me busy) and wanted to avoid the battery dying on me. Figured I'd ask here!
Old 06-29-2017, 01:23 PM
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Fracture
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get / use the Tender, for about $50 and a ten minute install
I like to leave my car (911) unlocked in the garage

live with the piece of mind that if you're not going to drive your car for
4 or 5 days, it will start

2 - 3 weeks, most definitely

simple and foolproof

Old 06-29-2017, 01:37 PM
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Suicide Jockey
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I use the standard Porsche (CTEK) charger in the cigarette lighter. Works great. Part No. 955 044 900 54.


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Old 06-29-2017, 01:43 PM
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96Tiger
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I've got the generic CTEK from Amazon and use it whenever the car will sit for several days without use.
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Old 06-29-2017, 01:57 PM
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tq.3z
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Thanks guys
Old 06-29-2017, 02:21 PM
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jeanrabelais
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does anyone have information about exactly how much time our cars can sit between drives ?
Old 06-29-2017, 02:59 PM
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PorscheAddict
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It depends on what kind of battery you have and how new it is. OEM will last at least a couple of weeks if it's relatively new. My car is a DD, so no tender here
Old 06-29-2017, 03:17 PM
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Buteo
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How about if you have the Braille lightweight battery?
Old 06-29-2017, 03:19 PM
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Braille tend to not last more than a couple of days in my experience years ago. I don't know if they're any stronger now, but 7 or 10 pound batteries are not going to last long. I left it on a tender right up until I loaded it on a trailer for a track weekend and that worked fine.
Old 06-29-2017, 05:38 PM
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Marine Blue
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I'll usually put my battery on a tender after 1.5 weeks has passed. I'll let the tender charger it up and then disconnect it after a couple of days. My first battery lasted 5 years and I'm at 18 months on my lightweight Odyssey battery.

I definitely wouldn't disconnect the battery for long periods as it could mess up certain engine settings and require a durametric to reset.

Last edited by Marine Blue; 06-29-2017 at 07:55 PM.
Old 06-29-2017, 07:14 PM
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terbiumactivated
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I use a little older version of this one: http://tinyurl.com/y7k5c9cu, works great. Like MB I got six years out of my OEM battery, I used the float charger whenever the car sat more than a week and during the few bad weeks of winter weather. I replaced it with an Interstate MEGA-TRON plus Have had nothing but great luck with interstate and cell access means the battery can be easily serviced for extra long life.

One thing I like to do is leave the hood unlatched under the cover. It vents the space, creates extra clearance for clamp style ends too and if the car sits and the battery does go flat one does not have to use the kick panel jump to operate the electric latch.
Old 06-29-2017, 07:48 PM
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FrugalB
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I use the batter tender like posted on the Second reply. I tried the cigarette adaptor for it, but could not get it to work... I attached the plug to the battery so it makes the process of charging the battery much more simple.
Old 06-29-2017, 10:53 PM
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okie981
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Yes, CTEK MUS 4.3.

Bought this kit, has everything but the kitchen sink:

Amazon Amazon
Old 06-30-2017, 12:56 AM
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GregWormald
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My Boxster is a daily driver, so no tender needed. The Moto Guzzi does sometimes sit for a while in the bad weather and a trickle charger/tender keeps it ready to go.

Greg
Old 06-30-2017, 03:53 AM
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various cheeses
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Can a CTEK unit plugged into the lighter bring a battery back to start the car (or at least pop the hood)?


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