Eclipse Solar Flare device-charging messenger bag
The Eclipse Solar Flare messenger bag works much like the Voltaic Solar Backpack to charge your portable devices via solar photovoltaic cells, but in an over-the-shoulder format. It will give some extra juice to your cellphone, PDA, or other small devices but, alas — not your laptop (though it will transport it, this is but small consolation). The charging module happily works with a standard 12V car socket, at least. Available for $129, which isn't too terrible considering you could easily pay that for a decent bag without charging features.