I haven't read much about barrel plugs so I could be mistaken.
On the product page it says there is a 2.1mm to 1.4mm adapter which fits the barrel fine.http://adafruit.com/products/390
But when reading about it off ladyada's site it mentions a 1.7mm plug.http://ladyada.net/products/usbdcsolarlipo/use.html
Which one is it? or does both work fine?
Also with the Medium 2W Solar panel, the description says 3.5mm x 1.3mm, but off of Voltaic it says a 3.5mm x 1.1mm. Which is correct?
If someone can clear this up for me it would be great. Thanks.