They're dead easy to use. You cut the cable, poke the ends in all the way (no need to strip the insulation), and squeeze the button to snap them down and bite through the cable. ...
Here's how to get the longest, most trouble-free life out of the rechargeable battery inside your iPhone (or anything else that contains a battery).
Room temperature -- around 20°C/70°F -- is the best temperature for charging equipment. However, since we don't all live in climate-controlled rooms, we can extend this range out to 5 to 45°C (41 to 113°F). Anything to either side of this and things can get bad for the battery. This is especially true for charging the battery at temperatures below 0°C/32°F, which can permanently damage the battery.
Battery chemistry can play a part here -- some batteries have better temperature tolerance than others -- so if in doubt, check the specs.
Subjecting Li-Ion batteries to temperature extremes can also physically damage the battery, causing it to warp or crack. This, in turn, can damage the device containing the battery.
I suggest keeping your iPhone away from prolonged exposure to direct sunlight (for example, don't leave it on the dash of your car on a hot day), and to keep in in your pocket on cold days.
If you want to keep an eye on the temperature of the battery in your Windows or Mac laptop, there are numerous utilities that will let you do that (For Windows, Passmark BatteryMon is excellent, for Mac my choice would be TG Pro).
Caption by: Adrian Kingsley-Hughes
Join Discussion