I recently fixed up an old iPhone 4 for fun and to try out iOS. Turns out it’s limited to iOS7 which means most of the apps I try to install don’t work. Damn you apple, damn you.
I stuck it in airplane mode to fast charge, then plugged it out and forgot about it. A few days later I came back and found it at 100% battery life. Turns out the iPhone 4 has incredible battery life if you put it in airplane mode and do nothing with it.
6 Days, 17 hours, 85% and counting