Quote:
Originally Posted by GeoffR
I think it makes more sense to have a seperate solar panel rather than one integrated into the reader: that way you can sit in the shade and read while the solar panel is in the sun charging; you can use the energy collected by the panel to charge a range of different devices (radio, torch, camera, etc.) not just the ereader; and you can have the solar panel attached to your bicycle, backpack etc. while on the move during the day to power your ereader and other devices when you stop for the night.
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Depends on your uses / need.
I have an USB battery. But, I'm rarely away from a power plug for a long time.
I don't need the battery unless i actually forget to charge. So it's just : here's one device i won't have to worry about.
Someone traveling a lot and having a bunch of devices, external battery might make more sense indeed.