Maverick Hybrid as Booster Vehicle?

[Glen Baker LLC]

Superconductor ≠ Supercapacitor

Funny thing is. Last night when I posted that I remember saying superconductor instead of super capacitor

I thought you were going to act your age.

That I don't remember saying.

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[Tbone289]

Funny thing is. Last night when I posted that I remember saying superconductor instead of super capacitor

You remembered correctly. They are supercapacitor jump starters, not superconductor as you posted last night.

 

[MakinDoForNow]

Superconductor ≠ Supercapacitor

If you have a super capacitor everything will appear to be a superconductor!!!!

 

[notfast]

Who can explain why the battery charger works attached to vehicle but the jump pack won't?

If you're using a lithium jump pack, my best guess is that the BMS software wasn't designed with that use case in mind, so it errored out when it detected something outside of its programmed range. This is when a lithium jump pack with a force-start/boost or other mode that disables all the safety features is helpful.

You could try an old-school gel cell jump starter like the Jump N Carry and see what happens or doesn't happen. If you already tried that and got the same result...no idea then.

 

[Mavster Mechanic]

If you're using a lithium jump pack, my best guess is that the BMS software wasn't designed with that use case in mind, so it errored out when it detected something outside of its programmed range. This is when a lithium jump pack with a force-start/boost or other mode that disables all the safety features is helpful.

Yes, you nailed it.
I forgot the Golf Cart LiFePo batteries go "open circuit" if they get too low. And like too low is 11 volts Kinda sucks they shut off vs. fade away.

OTOH I still can't explain why it wasn't "open circuit" after I detached one lead from the vehicle. Just weird to me.

Also my cheap end jump pack does have a override feature that I didn't know about. I will try again if opportunity presents.

Sometimes "smart" features don't help you!

 

[MakinDoForNow]

Yes, you nailed it.
I forgot the Golf Cart LiFePo batteries go "open circuit" if they get too low. And like too low is 11 volts Kinda sucks they shut off vs. fade away.

OTOH I still can't explain why it wasn't "open circuit" after I detached one lead from the vehicle. Just weird to me.

Also my cheap end jump pack does have a override feature that I didn't know about. I will try again if opportunity presents.

Sometimes "smart" features don't help you!

Some are programmed to check for 6, 8, 12 volt batteries. So if you have a 12v below 7 volts you will need to select 6 volts on charger (if it doesn't have force mode) and charge long enough to get enough to use 12v setting. The battery will still need 1.5-2v to recognize a 6v battery to charge. OR hook an additional 12v battery (+to+/-to-) to the dead battery and put charger on that battery charging both batteries at same time. (Old timers force mode ).

 

[notfast]

Also my cheap end jump pack does have a override feature that I didn't know about. I will try again if opportunity presents.

Which one do you have? I wish more companies would list force-start/boost as a feature instead of having to read the owner's manual. I currently have the YaberAuto "8000A", which has a force-start mode, a semi-decent air inflator, and a screen big enough to easily read through the gap in the hood while sitting in the driver's seat. It's just a little on the bulky side. Frequently goes on sale for $80-90.
https://www.amazon.com/dp/B0D41NT5KL/?th=1

 

[Flyangler]

Ok, now that you have gotten good and helpful answers, I will tell you my reaction when I saw the title of the post: Is the Maverick acting as a booster seat for for another car to sit up at the dinner table?

Carry on!

 

[MattTX]

Whatever jump pack you get make sure it has a good boost feature. I have a Gooloo (https://www.amazon.com/dp/B0FNMLG15N?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1) and it works great, I've had a dead battery 3 times in the past couple of months and without the boost feature I wouldn't have been able to start my truck. I have a 2024 hybrid (that I bought new in May 2025) and it's time to the go to the dealership for a warranty replacement. Wheee.

I haven't used the air pump and I know that's always a weaker feature on these things but figured it was worth having in case of an emergency, or if I just need to inflate a ball or tube.

Edit to add: my only minor complaint with the Gooloo is the jumper cable part is short and barely reaches between the positive and negative points under the hood.

 

[inline_five]

FYI if you have a hybrid, you don't need much. I found one on AliExpress for around $33 shipped, although price has gone up a little now (I bought the 16000 mah version).

Car Jump Starter with Air Pump 4000A Jump Starter &150PSI Air Compressor, Portable Auto Power Banlk ,Tire Inflator, LED Light - AliExpress

This is perfectly fine to use and has a boost button that will override the safety features. Works well.

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