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Old Yesterday, 03:44 PM   #1
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Battery Boost via ANY 12V Jack?

I see a lot of videos that tell you to plug your mini booster box into "any" 12V power jack.
AFAICT, the jacks are only ON when you turn the main keyswitch on, except for low-current for charging a phone.

So, can you plug in a booster box and feed 20-30A back into the battery from ANY 12V jack, or just a certain jack?

Otherwise, you need to connect directly to the battery, if you need a boost or jumpcharge.


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Old Yesterday, 05:04 PM   #2
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Any power take-off point in a car is limited by the wire gauge size and the fuse that is matched to it. Why the cig lighter fuse so often blows out when you hook up to it using something that pulls way more current than the wiring will supply.

That idea is garbage, you will likely never find a jack that will pass that much amp and it is WAAAYY over the 30 amp number you mention. Battery boosting amp can easily be 100 amp if not more, you commonly use 250 using a booster box.
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Old Yesterday, 05:26 PM   #3
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The NOCO Boost Sport GB20 is supposed to deliver up to 400 Amps. It's recommended that you connect it directly to the battery, which is fine, but doesn't answer my question.

Can you recommend a booster box that can plug into the 12V jack?
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Old Yesterday, 05:26 PM   #4
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The NOCO Boost Sport GB20 is supposed to deliver up to 400 Amps. It's recommended that you connect it directly to the battery, which is fine, but doesn't answer my question.

Can you recommend a booster box that can plug into the 12V jack?
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Old Today, 11:43 AM   #5
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Quote:
Originally Posted by GuitarZ View Post
I see a lot of videos that tell you to plug your mini booster box into "any" 12V power jack.
AFAICT, the jacks are only ON when you turn the main keyswitch on, except for low-current for charging a phone.

So, can you plug in a booster box and feed 20-30A back into the battery from ANY 12V jack, or just a certain jack?

Otherwise, you need to connect directly to the battery, if you need a boost or jumpcharge.
The BCM (Body Control Module) keeps the power port on the console energized for several minutes after you turn the key to the off position.

I have always been a skeptic of these jump starter boxes that plug into the cigarette lighter but I have to admit that this thing works. I wanted my wife to have a way to jump the battery if it went dead and I knew she could not be getting out of the car to open the hood in a bad neighborhood or a high traffic street. I bought this Stanley Simple Start and left it under the seat for emergencies. Sure enough, my battery was getting old and would not crank one morning. I plugged the Stanley into the power port on the console of my MK3. It does not instantly jump the car off-you have to wait for the green light. Sure enough, the car fired up and I headed out to buy a new battery.

So yes, I can confirm that this device worked through the power port on the console which surprised me. No wiring damage and no blown fuses but that may be unique to this device as I would be concerned if I plugged a high amp jump starter into the power port.
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Old Today, 01:09 PM   #6
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Does the Stanley come with a crevice tool and an extension hose?
Ha ha
It's only $29
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