This is not so much of a battery test. I just fully charged my iPhone 5 the other day and resisted from recharging it until the battery icon turns red. Somehow, I managed to let the battery to go down to 1%. The screenshot was taken at 2309 as you can see, and it still allowed me to run a few apps until I plugged in the lightning cable at 2316. I am quite impressed considering that my HTC Desire will turn itself off automatically at 10% – 15%. Either iOS is very good at manipulating the battery percentage or the battery management is really that good. I believe in the latter since a single charge lasted me 2 days and 21 hours of standby and 9 hours and 21 minutes of usage. That’s pretty good!