We have battery chargers and start units for that reason
I work at an RV center and I use this constantly to let slides out on campers
I have used it to charge my laptop but it only charges my laptop about 75% before it runs out of juice
I would recommend this as a great gift to anyone
I like the error free connection system that helps prevent potential problems when Juno startingThe addition of the light is helpful in the dark to jump start under the hood Best little device I have ever owned
I heard about this product from a family member, and I would definitely recommend this product !! Chargers my phone quickly, jumpstarted my weak car battery 15x without failing, holds a long charge, perfect!