Jumping Prius Prime with Hulkman Alpha85

any unpainted metal should work. manual might mention something

 

Any unpainted metal away from the battery. The idea is to avoid an H₂ explosion caused by a spark when you complete or break the circuit, as H₂ is concentrated around the battery. As long as you are in a well-ventilated space and you fan the battery to spread out any H₂, you should be probably OK with connecting it directly across the battery.

 

Add a ground cable of an old school jumper cable to your jump pack kit, then you can reach whatever point.

That said, I'd also pay some attention to avoiding the need for a jump pack.

 

Another thought: look for a jump pack with longer cables?

Check your prospective ground points too; make sure they work. You can do this with a test light probe, or the resistance mode (or continuity function) of a multimeter. Attach one probe to a very “for sure” ground, the other to prospective point.

come to think of it, in Vancouver’s Stanley Park there’s a Prospect Point.

If you stay on your toes about battery maintenance, look into smart chargers, you’ll likely only be using a jump pack on other cars.

 

Again, check for continuity, between a known good ground and the "prospect".

For your wife, maybe look into a quick-connect system. You run cables from 12 volt positive and ground, to a socket, mounted somewhere conventient (maybe even in the cabin), and have the jump pack cables wired to a corresponding connector. Preferably one that cannot be reverse-connected.

Here's our CTEK charger connection, very simple to hook up: One lead goes to a bolt in the corner of the engine bay (it was an empty threaded hole, from the factory), and the other to the 12 volt positive feed into the fuse box.

 

they must have really changed the engine bay, gen 3 has all kind of ground points

 

There's a chassis/body ground just below the fuse box where the positive blade is located. Considering the short length of the Hulkman's cords, that's probably where I would attach.


edit: Actually, I might have to take that back after thinking about it for awhile. It's one thing to use a bare metal part as a ground, it's another to attach to an actual grounding wire without knowing where that wire goes. There's a (tiny)chance power could be routed somewhere it shouldn't go. Probably better to use the fuse box bolt right next to that ground wire if the jaws of the boost pack can be secured to it..

 

Just get a jumper cable as an extension cable as @Mendel Leisk suggested so that you avoid an H₂ explosion, which could still happen if the chassis connection is within two feet of the battery. The chassis connection needs to be at least two feet away from the battery.

 

Lol. Why would there be an H2 problem when using the jump point under the hood?

 

Alternatively, if you turn off the device before connecting and disconnecting it, there shouldn’t be sparks; so, you can connect the device directly across both battery terminals if you do that.

 

I used a jumper cable as an extension so the negative clamp could reach where the manual said to connect. It worked great!