Jump starters and jump starting.

[the green vanper]

Yes, mine is battery powered. And I know yours has supercapacitors. And I know the advantages of it.

The battery powered ones can be used to start cars with totally dead batteries and power 12V tools.

Sometimes also LTO batteries are reffered to as supercapacitors. They can be charged / discharged with a current of 10C, but I have two 100 Ah LTO batteries as habitation batteries for my Ducato, so I know that definitely would not fit into such a small housing

 

[Pugglt Auld Jock]

Yes, mine is battery powered. And I know yours has supercapacitors. And I know the advantages of it.

The battery powered ones can be used to start cars with totally dead batteries and power 12V tools.

As you say, there are advantages and disadvantages with both setups - and I agonised for some time, several months - if not years! over which would fit my situation best. In the end, as you can see, I came down on the side of the capacitor based system which, I think, will deal with most situations (I'm not interested in having an independent power source for the likes of smart phones etc) Of course I still have recourse to my emergency workshop batteries for situations which require it if I'm not too far from home. So, who knows if my choice has been the right one - I think it has - but time will tell!

I've been reading about small batteries coupled to supercapacitors, used in place of a normal car battery, which I find very interesting but don't yet properly understand.