I have been using the solar messenger bag from Eceen solar for a while now for daily use. This literally goes wherever I go now on a daily basis.
This is a water resistant messenger bag with a built in 7 watt solar panel. The solar panel has a USB output for up to 1 amp charging of 5 volt DC USB devices.
I have been using this to charge up devices on the road in the back window of the car, in the house window on sunny days or on the go in town.
This keeps my cell phone, camera and tablet charged up at all times. I also use it on the road to charge up my USB chargeable flashlights.
When in the car it goes in the back window to charge devices because we usually have two devices up front charging at the same time. This gives us even more power on the go during long trips.
Out in town this can keep your phone topped up at all times. Its great for fishing, hunting, hiking, survival or every day use. In a survival or camping situation you will never run out of power on your cell phone or GPS. This could be a life saver.
There are two large outer compartments under the flap where I keep my calendar book, external hard drive and laptop power cord. Inside the main zippered compartment I keep my 14 " laptop itself. Behind that is a tablet pouch and behind that is a zippered compartment where I keep memory cards.
Inside the main compartment are two more storage compartments where you can slide items into.
On the outside of the messenger bag you can carry two water bottles. This makes the Eceen solar messenger bag a perfect day carry for hikes as well. With the solar charger you never have to worry about lack of power out in the field.