Originally Posted by Antigravity

About Opening the Frunk on a Modern Porsche…

As many have mentioned, you can pop the frunk using a jump starter or a well-charged motorcycle/car battery by connecting to the red bus in the fuse panel and a good ground. Often you’ll also need to use the key fob rather than the interior switch. The issue is that this method does not always work reliably.

Common reasons:
- The jump starter may not be fully charged or powerful enough

- The ground connection may not be solid

- And as we found in testing, the wiring through the fuse panel is thin gauge and does not transfer voltage/current as efficiently as you’d expect

So while it can work, it’s not the most dependable solution.

A More Reliable Method....

Back in 2020, after I locked myself out of my GT3RS, we designed a better solution. It’s a simple wiring kit that connects directly to the vehicle’s battery and routes to the passenger-side frunk/windshield junction. If your battery ever goes completely dead, you simply plug in our Antigravity MICRO-START XP-20 (takes about one second), and you can immediately power the car — open the frunk or start the vehicle. We call it the Clampless Harness Kit because it functions like clamping a jump starter directly to the battery — except it’s already hard-wired in. No clamps. No accessing the battery necesary. No messing with thefuse panel. Just plug in and pop the frunk or start the Car, it works like so well because it connects at the battery terminals, it energizes the entire car as if the car has fully charged battery.

Benefits of This Method

- Works consistently — direct battery connection means full power delivery

- Simple installation — loosen battery nuts, slide ring terminals behind loosened nuts, retighten, route to passenger-side frunk/windshield junction, and tuck away (includes weather cap)

- No fuse panel access required

- No guessing about ground connections since it has a perfect ground when connected to MICRO-START XP-20

- Provides stronger, more direct power to the frunk release mechanism

If you have a Porsche Lithium Battery (992 models), the XP-20 can also wake up the lithium battery from sleep/protection mode which can be a massive benefit and allow you to get a charrge back into the Porsche Factory Lithium Battery.

Here's the Links to these product....

XP-20 Jump Starter:
https://antigravitybatteries.com/pro...-starts/xp-20/ we have a heavy duty version of the XP-20 called the XP-20-HD... it has a 24,000mah battery compared to a 20,000mah battery ( more power more capacity)

Clampless Harness Kit:
https://antigravitybatteries.com/pro...arness-msa10c/

On the Charger Issue…

Make sure your charger has automatic power reset. If your house/garage loses power, your charger should automatically resume charging when power returns — using the same settings as before. Without this feature, you could return to a fully discharged battery. Our Antigravity Super Chargers have this built in. If power goes out, they automatically resume charging when power returns. They also feature: Digital display with real-time voltage and current read out, no more dummy light LEDs. Charges Lead/AGM and Lithium batteries and does alot more, its a significant upgrade over older-style chargers like traditional CTEK units.

Super Charger:
https://antigravitybatteries.com/pro...hargers/sc-10/

Originally Posted by pbcsd

Thanks. I actually ordered your SC10 yesterday on Amazon.ca. I’m in canada so it takes a while to get here.

Just tried another higher powered battery booster. Same friggin thing. Frunk won’t open.

Originally Posted by Antigravity

Please try to reach a different ground point.... I see the hinge is painted black.... see if the cable can go to the seat bolt, try to find unpainted solid ground....you have to have that good ground, they try both the keyfob and the latch on the door sill, when testing I had mixed results but try both always. Then make sure the bypass is working on the Jump Starter so that you KNOW for certain the clamps are LIVE with energy, check with multimeter, and be careful if you press the bypass button because the clamps are live.... they can't shock you being only 12v but they can create sparks an fry things if reverse polarity connected.

Originally Posted by pbcsd

@Antigravity Batteries do you think your booster would work to wake the Lithium (and any discounts available on it)?

or is it more a crap shoot depending on the state of the battery?

Originally Posted by nyca

What ground did you attach to with the Volvo battery cables? This was never a power issue, that frunk circuit isn’t drawing some monster current load just to pop that latch. So the incomplete ground connection makes sense.

Now, whether you can get that lithium ion battery to start charging, that’s another story. I remember from the past there are YouTube videos about that.

Originally Posted by pbcsd

Okay. Got it to start using the Nico GB20. Hooked up the red to the red battery terminal and the black to a bare metal bolt/nut near the battery.

For some reason it was glowing red exclamation (implying reverse polarity) but when I put it into boost mode saw a quick spark that scared the ****e out of me but then the battery woke up and I was able to start the 911.

Drove it for about 20 minutes then put it back in the garage and plugged in the tender which seems to be charging this time.

Will see tomorrow. Of course I’m gone for 5 days so hopefully it keeps charging and doesn’t fail like the last time before my Antigravity tender comes in.

Thanks everyone for the advice and help.