Solar chargers are usually more expensive than it is worth, with some coming in at around $500. That is just too expensive to make solar power practical, but when the price is $150 then that is a completely different story.
The Muzatch solar laptop charger weighs just five pounds and once fully charged, it can go on standby for around 528 hours. However, in order for it to be any good for laptop it would need to be kept in the sun so it is fully charged.
Features of the Muzatch lightweight solar laptop charger:
Weight 4.73 oz (134 g), Battery: Polymer lithium-ion battery, Capacity: 12000mAh/3.7V, Standby: 528 hours (22 days), Output voltage: 5V,9V,16V,19V,22V, Output current: 5V/500 mA;9V/1000 mA; 16V/3000 mA, 19V/3000mA, ;22V/3000mA, Temperature-10C-50C, Input connection: DC – 4.0, Output connection: tow DC-3., 5 connections and USB connections, Material Plastic (ABS), Fireproof material: Flare: High light LED, Switch: PUSH, LIGHT and Different outputs can charge several different digital products at the same time.
Priced at around $150
Source [Tree Hugger]