That's a good idea - you can charge up some old car batteries in case there is a power cut. Makes more sense than using it when you are grinding up the Tourmalet...
I'd love to be able to store household power from turbo training!
The D1 is a nice insurance option. I normally have enough juice in batteries but if I fail to get a hotel or I'm on a bivvy mission then I can use it to charge/run stuff without any power source.
That's a good idea - you can charge up some old car batteries in case there is a power cut. Makes more sense than using it when you are grinding up the Tourmalet...