I'm leaving on Monday for a week-long camping trip and of course I want to take my iPad with me, so I'm going to need to charge it!
Update: nope, your going to need a much larger panel and probably a much larger storage battery for this to work. I'm giving up now and switching to AC after almost five days.
Here was my potential solution:
I've owned a Solio Magnesium (now called "Classic") for about a year. It features three solar panels and an internal battery. The idea behind the Solio is to charge the internal battery and then charge your mobile device using the internal battery. The Solio Magnesium comes with a charger so you are not entirely dependent on the sun.
I also bought a tip for iPhone as the Solio Magnesium is compatible with iGo tips.
I needed to do a feasibility test before I ran off half cocked, so I charged the iPad (indoors) for one hour from the fully charged Solio Magnesium. Initial results are a little disappointing:
Test 1 - Freshly Charged (from a Charger) Solio
1 Hour: 39% -> 48%
2 Hours: 48% -> 60%
(Solio battery dead)
Test 2 - Freshly Charged (from a Charger) Solio
1 Hour: 24% -> 31 %
2 Hours: 31% -> 42 %
(Solio battery dead)
Results of Real-World Test:
I never added more than 20% to the iPad's battery, which could have been OK with limited use. But leaving the Solio for 8 - 9 hours in full sunshine is not realistic for many cases: if you want to do anything other than charge the Solio Magnesium, for example. This device is great for the iPhone, but just doesn't get the job done for the iPad. I'm an engineer and I will find a solution. Stay tuned! But for now, I'm at 15% after five days of honest testing, and it's time to call it quits and switch at AC power. Thanks for experiencing my adventure with me! Numblock signing off to stretch an extension cord to the tent.
The Solio documentation states, and online reviews confirm that the Solio needs about 8 to 9 hours of good sunshine to go from zero to 100% SOC (state of charge).
My goal is to see if I can enjoy my iPad on vacation using only solar power, but I'll also be taking the normal iPad changer and an iPhone car charger with me just in case.
The Solio's battery is about the same as the iPad (Edit: looks like I'm wrong, and monkeyboy helps to explain why. Read on!). I hope to run through a full discharge of the Solio to see to what SOC (state of charge) I can get on the iPad.
Wish me luck!
Tech Specs of the Solio Magnesium:
Charging: 8-9 Hours from 0 to 100% SOC
Battery: 1800 mAh