I am new to electronics, please don't mind mistakes Right now i have a 5v solar panel, and a 3.7v battery,and i plan on buying step up converter from 0-9-5v to 5v. I have an iphone 6 with the new lightning usb, and i read that you need a special usb step up converter that also provides something to the data pins on the usb. i'm also not sure how a 5v solar panel should charge a 3.7v battery. Also, an iphone needs 1.2A i think, and i dont know how to check what amperage my solarcell/batteries/converter have.
battery: https://www.123accu.nl/123accu-18650-batterij-1-stuk-3-7V-2600mAh-i26531.html but with 2000mAh instead of 2600
i could use a battery pack with rechargeable aa's, but those don't hold a lot of power and i don't own any. But if i bought some, how does it work with solar panel voltage charging the combined battery voltage?
EDIT: fixed battery link