Solar Panel Discussions

Will this solar USB charger charge my iPod Touch 2nd gen?

Solar Panel : 0.4W
# Ac input: AC100V-240V
# Output Voltage 5.5V DC
# Convert efficiency: over 18%
# Max output current: DC 500mA
# High capacity build in polymer battery: 2600mAh

Sorry, no.

An iPod Touch needs 500 mA of charging current, even a 300 mA charger won't work (I tried it myself, it doesn't).

Assuming you could actually get 0.4 W out of that panel at 5 volts, that's only 80 mA of current. But small panels tend to have optimistic specifications, so the actual current you get could be just 20 mA.

You would look for a panel that says 5 volt output, 500 mA or more. Such a panel would likely be 1 foot square, or 1 foot by 2 feet.