rhemyis da-mi voe sa citez ce spune Apple despre bateriile sale la acest link
http://www.apple.com/batteries/iphone.htmlFor proper maintenance of a lithium-based battery, it’s important to keep the electrons in it moving occasionally. Be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).
How should I maintain my battery? Do I need to perform "deep discharge"?
iPhone uses a lithium-ion battery, like iPods and Apple's laptops. "Li-ion" type batteries are immune to the "memory" effects of earlier battery technology, and can be charged at any point without harm. A periodic full discharge and recharge can help the battery's power circuitry remain well-calibrated to provide an accurate estimate of remaining power (and runtime). (Li-ion batteries actually can be harmed by "deep discharge" maintenance techniques used for earlier Ni-Cad and NiMH batteries if run to completely empty, but circuitry inside the battery provides some protection against this by maintaining a small reserve. Simply charge your battery as soon as possible after fully discharging it to avoid this.)
deci pe scurt din cand in cand este recomandata procedura insa nu prea des si in nici un caz lasat cu bateria goala prea mult timp.