Omega Destroyer indicated he/she wanted something to directly charge a cell-phone.
OmegaDestroyer wrote:I'm looking to go straight from a solar panel to the device without the need for any other batteries in between.
You seem to be saying that the Cosco kit will charge a cell-phone directly from the solar-panel.
dmpyron wrote:Costco has a "kit" that has a flex cell that you can put on a back pack and either run your goodies directly off of it or charge a battery.
However the Costco kit includes 4 AA rechargeable batteries that probably are used in the same way that the Solar LiPo charger / Minty-Boost work.
I am pretty confident that you will be unable to properly charge a cell-phone directly from Costco's panel (without the rechargeable batteries).
As Lady Ada indicated, the panel's output is not stable enough to maintain the cell-phones charge cycle even if you included a voltage regulator to provide the required 5-V output voltage.
I doubt the good Lady will be offended but she does know her stuff.