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Okay, I really benefitted from the threads about charging the battery with a trickle charger, always locking the car, etc. BUT, I do have a question.
Suppose I'm off on the road in the middle of nowhere and can't open the trunk because my battery to totally dead. When I opened my trunk last time, I used my regular charger plugged into the wall AC outlet. I'm not sure my Cobra Jump Pack XL emergency charger would have worked. I seem to remember that it did not work in that instance.
Here's my question: Can I test my Cobra unit by hooking it up to the fuse box red contact point and a good ground if my battery is totally disconnected, or must my positive and negative engine cables be fully attached even for the Cobra Jump Pack to work in the first place? Stated more simply, do these chargers that clip to the fuse box line in case of the front hood being locked shut assume and require that the battery be fully connected to the engine cables, positive and negative?
That brings up a related question. Should I have a completely different kind of jump charger if I'm concerned about opening the front hood with a dead battery and having no AC power available? Maybe the Cobra is designed only to connect directly to the battery.
Okay, I really benefitted from the threads about charging the battery with a trickle charger, always locking the car, etc. BUT, I do have a question.
Suppose I'm off on the road in the middle of nowhere and can't open the trunk because my battery to totally dead. When I opened my trunk last time, I used my regular charger plugged into the wall AC outlet. I'm not sure my Cobra Jump Pack XL emergency charger would have worked. I seem to remember that it did not work in that instance.
Here's my question: Can I test my Cobra unit by hooking it up to the fuse box red contact point and a good ground if my battery is totally disconnected, or must my positive and negative engine cables be fully attached even for the Cobra Jump Pack to work in the first place? Stated more simply, do these chargers that clip to the fuse box line in case of the front hood being locked shut assume and require that the battery be fully connected to the engine cables, positive and negative?
That brings up a related question. Should I have a completely different kind of jump charger if I'm concerned about opening the front hood with a dead battery and having no AC power available? Maybe the Cobra is designed only to connect directly to the battery.
Thanks guys. I always appreciate the help.
We make a wire harness that you can route outside the vehicle and allows you to easily power your car to open the frunk or jump start the car without having to resort to going into the fuse box and messing around, Its so much simpler and takes seconds. Our harnesses may work with your Cobra jump starter depending on the type of tip it has for its Jump Start port. But they work with our MICRO-START Jump Start products. You can see a link to the product here. Also there is a video to show how it works.
Basically it is a wireharnes that you allows you to walk up to your car, plug in your jump starter for power and your ready to jump or open the frunk.It comes with a tip cover and tucks behind your hood , though we have it showing outside the hood in the image below.
We make a wire harness that you can route outside the vehicle and allows you to easily power your car to open the frunk or jump start the car without having to resort to going into the fuse box and messing around, Its so much simpler and takes seconds. Our harnesses may work with your Cobra jump starter depending on the type of tip it has for its Jump Start port. But they work with our MICRO-START Jump Start products. You can see a link to the product here. Also there is a video to show how it works.
Basically it is a wireharnes that you allows you to walk up to your car, plug in your jump starter for power and your ready to jump or open the frunk.It comes with a tip cover and tucks behind your hood , though we have it showing outside the hood in the image below.
Battery Tender products makes a similar attachment, but the standard one is only 18 inches long and it might not be long enough for the 911 application to snake out from under the battery cover. But they sell an extension cable for it.
What someone should really make is a combination trickle charger/jump starter product. As it stands now, you need two different devices. So as noted by the OP, the maintainer approach works fine in the garage, but if your battery dies while away from home, to get the jump starter device on it you need to get the frunk open because that device clamps onto the battery and doesn't use the maintainer cable. So that's when you need some method to energize the frunk release circuit.
Battery Tender products makes a similar attachment, but the standard one is only 18 inches long and it might not be long enough for the 911 application to snake out from under the battery cover. But they sell an extension cable for it.
What someone should really make is a combination trickle charger/jump starter product. As it stands now, you need two different devices. So as noted by the OP, the maintainer approach works fine in the garage, but if your battery dies while away from home, to get the jump starter device on it you need to get the frunk open because that device clamps onto the battery and doesn't use the maintainer cable. So that's when you need some method to energize the frunk release circuit.
Yes but no one is carrying a donor battery when they are away from home, you have to be able to use your lithium jump start box to energize the fuse panel to pop the frunk. The photos above are frankly, ridiculous. Most people don't even have a donor battery in their home garages.
I dont think most people drive around with a jump pack in the cabin of their car either*. Plus they can be pretty hit and miss with powering dead circuits. Getting into the game of certifying jump packs probably isn't something Porsche wants to do. If you have one that you know works I'm sure there is nothing wrong with using that.
Back in the before times, you would have a spouse / buddy / kind stranger / roadside assistance hook up jumper cables to their battery.
Also if your battery is flat dead....it's damaged and you probably need a replacement anyway.
*If you were hoping for a solution that didn't involve assistance away from home.
Originally Posted by tomtomtomtom
@Mike818 It's always amazing what people could learn by reading their owners manual
I have a jump pack in every one of my cars. For $50, they are cheap insurance and I don't want to be stuck stranded on the road or in a shopping mall someplace - especially in the modern day NY Metro area, where crime is big concern. And remember if you have no power, you can't shift to N, so to the tow the car it has to be pulled up on skates. Watch a youtube video of that procedure, you'll drop dead watching your $200K car being dragged on skates onto a flat bed.
I have a jump pack in every one of my cars. For $50, they are cheap insurance and I don't want to be stuck stranded on the road or in a shopping mall someplace - especially in the modern day NY Metro area, where crime is big concern. And remember if you have no power, you can't shift to N, so to the tow the car it has to be pulled up on skates. Watch a youtube video of that procedure, you'll drop dead watching your $200K car being dragged on skates onto a flat bed.
I'm sure tow truck drivers carry jumper cables.
As i said before though, the jump pack would need to be in the cabin to be useful. Where I'm from that's just too much of a theft liability for me. I don't want to get a window broken because someone wants my jump pack (or what ever they think it might be).
05-15-2024, 02:20 AM
Dead Battery Front Trunk--Again/Follow Up
