If it takes 5 sunny days to charge up... if I started now, it should be fully charged by, oh, err... about... April?
Even though the phrase ‘There’s no such thing as a free lunch’ remains a truism, however cynical, it doesn’t seem to stop Scosche from using the promise of ‘something for nothing’ to tempt you to buy its Solbat2 solar-powered backup battery. Scosche solBAT2 Scosche's Solbat2: Simple, idiot-proof design for charging and …
..if it charged in six hours, the idea that a lump of plastic with a solar cell and a lithium ion battery shipped for the far east is going to be less environmentally damaging or more economic than taking 5Wh from the grid/car/plane is just stupid.
As a reserve battery I guess it works ok, I bet however if someone did the maths the 1KWh or so of energy this thing is going to provide in its lifetime, won't offset the carbon used to manufacture, integrate and ship that solar panel.
I'm appalled. Why even sell such a thing?
I'm planning a two-week cycling trip which will mostly involve camping, and was looking for a way of charging on-the-go, specifically for charging music player/phone for tweeting etc. Looks like I won't be going the solar option...
At least they're honest about it though.
"I'm planning a two-week cycling trip .."
Fit your bike with a dynamo and recharge your batteries from that. If you want, you can reach down and disengage it before you go uphill, or only engage it on the downhill stretches; but watch your fingers! (Do they still make them? I remember them from 'the old days' when I had a bike.)
I mean, say this thing can charge your phone ten times before it's dry. Then charging it from the sun only takes a few hours per phone charge. You can top it up, I suppose.
However, I have doubt about charging batteries from other batteries - that includes driving this from the laptop, too.