I bought this hoping it would be sufficient to fully charge my Android. It will, but only after you charge the charger unit to 100% via a wall plug or USB. In full sun for 6 hours, the charger will only re-charge itself to 50%. A 50% charge on the charger unit isn't enough to charge my phone 100%. Very disappointing. Returns cost more than $6 for shipping, which makes it a waste of time considering the price of the unit itself. Wish I'd spent my time and money on a more effective product.

perks of having a window cubby

Does give a charge however, charging all night it doesnt fully charge iphone.

A toy -- wouldn't rely on one of these.

Doesn't always charge the phone has a mind of its own. For 1st week or so worked good .