What do you know about those Lithium battery boosters?

[turkeydance]

"People make sure they carry jumper cables but can't find anyone to jump them when they need it."

here is why, in my opinion:
current car electronic systems might (or might not) do a shutdown during or after "jumping".
few people will want to take that chance with their new $42K car "jumping" another.
best to "roll your own" and have an on-board system which will accept your choice.

[Electrician4you]

The batteries on my diesel died once. Called AAA guy came out with his cute jump pack accessory. My diesel laughed as it drained in on the first few cranks. Ended up getting new batteries installed

[HappyRider]

Originally Posted by turkeydance

"People make sure they carry jumper cables but can't find anyone to jump them when they need it."

here is why, in my opinion:
current car electronic systems might (or might not) do a shutdown during or after "jumping".
few people will want to take that chance with their new $42K car "jumping" another.
best to "roll your own" and have an on-board system which will accept your choice.

That plus the fact that few people stop to help stranded motorists anymore. In my case, my bike died after filling up. Some guys, who I later learned were bikers too, stopped (still on gas station grounds) and tried to help. The only thing they could do was to help me push start the bike, which failed. Then left.

[Quietude]

Originally Posted by Electrician4you

The batteries on my diesel died once. Called AAA guy came out with his cute jump pack accessory. My diesel laughed as it drained in on the first few cranks. Ended up getting new batteries installed

Yeah, I can still hear that mini-pickup going rrrrrrrrrrrrWHUMPF.

But jump packs aren't meant for HD/commercial work. OTOH I've started a big-block V8 with one multiple times on a single shelf charge.

[southernnaturelover]

Originally Posted by Quietude

Not if you have commercial-grade cables, instead of the $20 ones from AutoZone.

I had two sets of jumper cables that were grunt-heavy. One was a beautiful tow truck set that ended in a huge bumper-mounted socket. I intended to mount it on a big vehicle, but never did. Paid $25 at a garage sale, held it for about ten years, sold it for $100. (The copper in them alone was probably worth that much...)

But my other good cables... were nowhere to be found last time I moved. I have no idea where they went. A $75 set ca. 2000. 4 gauge, I believe. Rather than replace them, I bought the jump box. Even AAA uses those now for most calls.

True story - the full-size '68 wagon I intended to mount the cables on had a slightly tired 390. At least once, it killed the engine on a mini-service truck trying to jump it.

Mine doesn’t use traditional cables. You can only use the cables it came with because there’s a plug on one end.

https://youtu.be/w1vIvvbomRc

[JBPisgah]

Mine is 400mah and jump started a dead Camry fine after sitting in the trunk for 3 months. I've also used it to recharge my smart phone a couple times and got about 2 full recharges out of it. It's pretty great to have.

[HappyRider]

400mah might power your cellphone.

[JBPisgah]

Ha, ha, you're right. It's 6000mah.