Dead starting battery, fully charged house batteries? Is this possible?

[N147JK]

Originally Posted by Charliesmom

This why I carry a jump starter with me in the van (i.e. Audew, NOCO, DBPower, etc) since my isolator is unidirectional.

Me too. These make a lot of sense as they can be used to jump start the van, but for other things as well - emergency flashlight, electronics (phone) recharge, SOS signaler, etc. And can be kept charged via USB while you are driving.