Jumper cables? Nah....there is a newer better solution.

I have a Noco GB70 in my Duster, have had it for a few years now. Works like a champ, holds a charge extremely well too. It was a lifesaver when my factory wiring harness was on its way out and I was having starting issues.

It is a lithium ion battery, so, make sure you apply standard lithium ion battery charging precautions- only charge them with the charging device they came with (or the same brand), and don't leave them charging overnight or unattended. And in general, don't use cheap, off brand gas station chargers for anything.

It can be harder with some of these brands, but Noco is a large and well recognized manufacturer. With lithium ion batteries, stay away from the imitation stuff.