Most helpful positive review
49 of 52 people found the following review helpful
on December 30, 2009
Cons- You have only 2 options on batteries capacity. You must use either 4-AA or 4-AAA batteries during charging. And it's recommended of the same brand and Mah capacity for uniformity. Also, the cables do not include a USB connector to charge your MP3 player or Cellphone directly, but you could work around this with a second dedicated charger for your Cell.
Pros- The solar cells are good quality. At least, my unit was a good one. There may be duds as with any product. Living in Hawaii we have great sunlight. It takes only 5-8 hours to fully charge batteries from a fully discharged condition. Unlike expensive chargers with a built-in lithium battery, you can use any standard NiMH batteries of greater capacity to store your energy. Compare a 2800 Mah lithium capacity to say, 4-AA batteries of 2500 Mah each! When the lithium battery dies in the expensive charger, youre stuck! Not with this. You simply use new batteries. Now, this is what I do --- I can connect this charger and charge another smaller solar charger with an internal battery that does have a USB connector to charge my Cell or MP3 player. So even if the built-in lithium of my smaller charger dies, I simply hook up the chargers and I'm in business. But the important thing is that solar cells are of good quality and really charge in short time. And the fact that you can use any AA or AAA NiMH batteries for storage of power.
One more minor PRO - the battery compartment is separate from the solar panels, so you can protect it from the sun and not have to worry about it melting. Highly recommend.