How long does it take to charge my phone?

Last Updated: Sep 18, 2012 11:22AM EDT
Phones vary significantly in terms of battery capacity. The simplest (and most accurate) answer to this question is that charging your phone from a full Voltaic battery takes about as long as it does from the wall charger.

If the battery inside your Voltaic charger is flat, here's how long it takes to collect enough energy to charge most modern smartphones in direct sunlight. As a reminder, solar charging works best when the panels are outside and pointed directly at the sun.

Approximate Charging Times from a flat Voltaic Battery
Solar Panel Product Power Hours Direct Sunlight *
4 Watts (Amp, Fuse 4W, Switch, OffGrid, Converter) 4-5
8 Watts (Spark) 2-3
10 Watts (Fuse 10W, Array) 2
16 Watts (Generator) 1
* Charge times may be increased in cloudy weather, high temperatures, or where panels are not angled towards t
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