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This post was written by Rich
In the last-minute attempt to cover my iPhone5 power needs on a backpacking trip I was lent an Efreesia Duo. I had spent some time looking at solar chargers and a few battery backups– none of them had very good reviews or they seemed to be quite heavy and/or cumbersome. At first glance the Duo looks like a smartphone, it is roughly the same dimensions as an iPhone 5 but a bit lighter. I charged it via micro USB and headed out to the mountains of New Mexico at the Boy Scout high adventure camp Philmont.
A few people in our party had solar chargers and were constantly scurrying around trying to charge up the batteries attached to the solar cells. I trusted in the Duo and was not let down– over 11 days I got 3 full charges out of the Duo. The 4 blue lights gave me an idea of the power left in the unit. At the time of my trip, I had honestly no idea what this thing costs but come to find out that it has a price point below $50! I would not hesitate to pick one up just to have on hand for unexpected needs, after having the chance to try it out. I would prefer that it had a lightning (the new iPhone adapter) built-in as it does instead of USB and Micro USB, or maybe there could be an Apple-specific unit. Two thumbs up on what appears to be a solid piece of engineering and design.
- Built-in USB cable for charging your micro USB compatible phone and a built-in USB cable for charging the eFreesia duo
- There are two USB ports to always keep your phone or tablet charged
- The 5V 2.1A port works best for Tablets and the 5V 1A port will charge everything else
- Charge up to two devices at the same time
- Features an auto-shutoff feature for when your battery is completely full and the power button start charging/ check the battery level
Buy It: No longer available