case with a secondary battery? I recently purchased the iPhone 4 with a Mophie built-in battery cell phone case, I have been looking on-line for information about the best procedure on re-charging both batteries at the same time keeping the phone in the case and I've got mixed suggestions on recharging when the batteries are at 10% of power or just re-charge the batteries anytime as soon as possible.
A good analogy is the gas in a car tank to wait till the tank is near to empty to fill up or try to keep the tank full all the time as soon as you find a gas station, probably for a car won't make any difference, but for a cell phone battery I've heard so many different conflicted suggestions that is hard to figure out which one is more appropriate.
Also a cell phone in a battery case the problem above doubles dealing with two batteries since recharging just the cell phone case would keep the phone battery practically at 100% of power all the time or is better to wait both batteries to get depleted and re-charge only at that time.
A good analogy is the gas in a car tank to wait till the tank is near to empty to fill up or try to keep the tank full all the time as soon as you find a gas station, probably for a car won't make any difference, but for a cell phone battery I've heard so many different conflicted suggestions that is hard to figure out which one is more appropriate.
Also a cell phone in a battery case the problem above doubles dealing with two batteries since recharging just the cell phone case would keep the phone battery practically at 100% of power all the time or is better to wait both batteries to get depleted and re-charge only at that time.