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Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,860
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Anybody ever use a solar battery maintainer on their car ?
My buddy does this with his backhoe that sits at his camp all year long .
Our Cayenne has an annoying parasitic drain, that I just do not have time to chase right now. It was never a problem when we were daily driving it , but now it is an extra car, and may only get driven once every few weeks . Annoying as heck to find the battery dead when I want to take it out . Was kind of thinking about just setting one on the dashboard and hard wiring it to the battery till I sort out the drain . I hate chasing parasitic drains. Even harder on a cayenne, with the battery under the drivers seat .
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No left turn un stoned |
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02-21-2020, 07:39 AM
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Control Group
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Yes, did that on my wife's truck while I figured out what was draining it. Got it at Harbor Freight for like $15, plugged into the cigarette lighter.
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She was the kindest person I ever met |
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02-21-2020, 08:19 AM
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Recreational Mechanic
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I have a solar battery maintainer on my race trailer. It works great.
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P Cars: 2022 Macan GTS / One empty garage space ---- Other cars: 2019 Golf R 6MT / 2021 F-250 Diesel / 2024 Toyota GR86 6MT ---- Gone: 1997 Spec Boxster Race Car, 2020 GT4, 2004 GT3, 2003 Carrera, 1982 911SC, 2005 Lotus Elise and lots of other non-Porsches PCA National DE Instructor #202106053 / PCA Club Racing / WRL Endurance Racing |
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02-21-2020, 08:32 AM
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Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,860
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I see a stop at Harbor Freight this weekend! , Thanks for the replies .
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No left turn un stoned |
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02-21-2020, 08:34 AM
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Registered
Join Date: Jan 2001
Location: So. Cal.
Posts: 9,119
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I got a couple some years go to use for my tractors. They measured something like 4 in. x (maybe) 9 in. They did an excellent job. I hung them on the outside of my tractor shelter facing to the south. One thing that happened was the pig tail exiting the bottom (wire that delivers power) on one of them got moved around by breezes/wind and broke due to fatigue. Of course you will have to try to match the output of the panel with the draw on the car, but you can do that.
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Marv Evans '69 911E |
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02-21-2020, 08:43 AM
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Registered
Join Date: Dec 2002
Location: Dahlonega , Georgia
Posts: 14,713
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Is the Cayenne cigarette lighter " live " with the key off ? If it is I agree a small solar charger/maintainer that sits on the dash and plugs into the lighter will help .
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02-21-2020, 09:47 AM
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Registered
Join Date: Jun 2008
Location: LEEDS ,UK
Posts: 2,169
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Yes, even in northern England I have successfully used one bought at HF, on my Autosolo car which is only used once a month or 6 weeks.
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1986 924S bought new. Now used for AutoX and street. Chipped, throttle cam, highflow filter in original airbox/snorkel, 14mm rear sway Hyundai Ioniq hybrid daily driver Vindicator Vulcan V8 spyder, street legal sports racing car (300hp,1400 lbs kerb weight) used for sprints on circuits, and hillclimbs |
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02-21-2020, 09:49 AM
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Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,860
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Quote:
Ill go straight to the battery junction under the seat if I have to .
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No left turn un stoned |
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02-21-2020, 10:12 AM
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It'll be legen-waitforit
Join Date: Jan 2002
Location: Calgary, Canada
Posts: 7,004
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My aunt used one until it caught fire and burner her car.
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Bob James 06 Cayman S - Money Penny 18 Macan GTS Gone: 79 911SC, 83 944, 05 Cayenne Turbo, 10 Panamera Turbo |
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02-21-2020, 02:00 PM
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abides.
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I've seen a few that plug in to the OBD port, in case the lighter socket won't work.
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Graham 1984 Carrera Targa |
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02-21-2020, 02:02 PM
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2004 Mazda Miata
911SC 3.0
1984 Porsche Carrera Targa
