The Kitables Solar Charger Kit gives you everything you need to build your own functioning solar charger. Its compatible with most smartphones and tablets, including iPhone, iPad, and Android devices. Battery Charge Time Solar: ~14 hours Battery Charge Time Wall: ~2 hours Phone Charge Time: ~2-3 hours* Build Dimensions: ~ 4. 5 x2. 5 x7/8 Weight: 116g (equivalent to 46 pennies) *Charge times vary between devices, operating systems, and other factors.