I just received my first "nice" solar charger. Looking at the box, I was a little surprised to read this on the box:
"The less you use the solar panel to recharge the battery, the longer the battery will last"
Looking online I found:
"RoamProofs product's battery life will decrease when the solar panel is used to recharge the device's battery. Extend the life of any internal battery by charging through a wall adapter using provided charging cables."
Is this the norm?
If you're interested in seeing specs and my photos of the unit I'm talking about, you can see them here:
Unboxing Photos: RoamProof SOS20K Portable Solar Powerbank & Package
![Image](http://hikinggeek.com/wp-content/hiking_photo_galleries/gear_reviews/ROAMPROOF/SOS20K/DSC07509-11_HDR_1200.jpg)