what battery pack for backpacking, expedition or regular hiking for various day...?

[inter]

energybar250 is a very cool device, and I thought about it,
but I chose more equipped and maintainability from MSE
http://www.mannasolar.com/product/?112_555.html

 

[ciccio90]

inter are to weight, price?

 

[inter]

There are 3 models: 12/14/17kg and 420/520/640usd
and as you can see, every model is too weighty for backpacking or hiking.

 

[ciccio90]

in fact....