Integrated Battery Charge = 5V x 1A (1000mA) = 5 Watts Battery capacity = 6 A-hours (6000 mAh) x 5 V = 30Wh Time to fully charge battery (linear) = 30 / 5 = 6 hours in the sun
Theoretical charge time (linear) from the Solapad = 42.5 / 10 = 4-1/4 hours either in the sun or from the integrated battery.
However, the battery charger only has a capacity of 30W, so the ipad would need 3 hours (linear) to receive all of its solapad capacity to achieve partial (70%) recharge of the ipad. I guess the claim of "never having to plug in your ipad again" assumes you spend at least 6 hours in the sun to replenish the solapad and assumes you only use the ipad 70% of its useful charge life and have at least 4.25 hours each day to dedicate to the recharge.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.