[mep1811]

Don't waste your money on any of these solar chargers. The output on the Coleman unit is 600 milliamps that is not even one amp. Most batteries discharge more than that just sitting. Also this rating is in sunlight. figure on only a couple of hours a day at the most.

At work I did up a solar project to provide 4 amp hours of charging into a battery bank. The solar array was to be over 5" x 8" at the cost of over $3,000.00 not to count the inverter and the battery bank that I had to keep my equipment powered. The company I dealt with ran some additional calulations and here in El Paso the "Sun City" with some 300 days of sun a year I would only realize 2 hours a day of full sunlight capable of charging. During winter it would be less. The solution to that is more panels. Not very pratical.

These solar chargers do work on a very low amperage battery like a cell phone or Ipod.