Switch I know this has been mentioned dozens of times, but I've seen dozens of different...

[Dale Smith]

I know this has been mentioned dozens of times, but I've seen dozens of different answers, I'm going on a 10 hour road trip from Yorkshire in the UK to Paris and would rather use my Switch rather than look at traffic jams, what is the best power bank to use to keep my switch charged, I'm on a coach not a car so can't use a 12v cigarette lighter adapter, Ta very much