Evo i mene...
Punjenje tipa 3x12 sati je nemoguće (za Li-Ion i Li-Polymer), iz prostog razloga što će telefon prestati sa punjenjem kada kapacitet baterije dođe na potreban nivo, a za to je potrebno maksimalno 3-4 sata, u zavisnosti od baterije i načina kako sam telefon reguliše punjenje. Kod nekih modela telefona postoje dva režima punjenja - jedan je kada je telefon ugašen, odnosno sporo punjenje - i drugi je kada je telefon uključen - brzo punjenje. Razlika je u struji punjenja, sporo - manja struja, brzo - veća struja. Što je veći kapacitet baterije (izraženo u mAh), potrebno je više vremena da se napuni. U teoriji, bolje će se napuniti u sporom režimu, u praksi se to i ne oseća nešto. Bateriji ne smeta da bude na punjaču i ako je puna, ali svakako nije pametno da stoji danima, par sati je sasvim ok. Takođe nije loše bar jednom u 10-ak dana isprazniti bateriju skroz. E sad, mogu se javiti razni problemi tipa - loš kontakt, ili zeznut softver, odnosno kontrola punjenja, pa se baterija ugreje, prepuni, ili uopšte ne puni, i slično.
Evo kratkog opisa o tipovima baterija:
Nickel Metal Hydride (NiMH):
These batteries were introduced in the early 1990's as an improvement over older chemistries like Nickel Cadmium (NiCd). Although they may have a very slight memory effect, NiMH batteries are much more reliable than previous chemistries. Compared to a NiCd battery of equal size, a NiMh battery will run for 30-40% longer on each charge. NiMH batteries can also be recharged 60% in just 15 minutes. The unique NiMH chemistry packs much more power than NiCd. Additionally, NiMH batteries often have twice the lifespan of NiCds.
Lithium Ion (LiION):
The most popular batteries available. Li-ION have replaced NiMH batteries for many phones because they provide 4 distinct advantages :
1) 40% longer Standby and Talk Times than NiMh.
2) Lighter and more compact than NiMh batteries.
3) LiIon batteries do not suffer from memory effect .
4) The battery lifespan will be over 30% longer than NiMh batteries because the cells can accept more charge cycles.
Lithium Polymer (Li-Poly):
The newest and most advanced technology for cellular phone batteries. This brand new chemistry of battery allows for the most compact cells available. Li-Poly batteries are extremely light and in most cases very thin allowing for the highest battery life for the size. Lithium Polymer batteries share all of the benefits of Li-Ion plus can last up to twice as long.
Memory Effect:
The term "memory" in reference to batteries means the battery "remembers" its usual discharge point and superficially "needs" a charge whenever it hits that point. In other words, if you have a NiMh battery that always gets discharged to only 50% of its capacity, it will eventually not run below that 50% mark if you ever wanted to discharge it to a lower point.
Standby and Talk Times:
Standby and Talk Times are affected by a number of variables such as Digital vs. Analog, NiMh vs. Li-Ion, Model and Age of Phone, Temperature, and Humidity. These variable factors make it difficult to determine the exact amount of Standby and Talk Time any given cellphone battery will provide. Also, in simple terms the higher the mAh rating of the battery the longer the Standby and Talk Time will be.
Note: mAh – stands for "milli Amp hours" and is the measurement of a battery’s storage capacity.
How to maximize the life of your battery:
There are several things you can do to maximize the useful life of your battery: Dirty battery contacts are the number one source of charging problems. Clean the battery contacts with alcohol and a cotton swab from time to time. Make sure no cotton is left on the contact points. Don’t leave your rechargeable batteries dormant for extended periods. Take them for a "spin around the block" every so often. Batteries that sit idle for extended periods of time without charging begin to lose their ability to hold a charge and will self-discharge, so remember to charge them again before use. Always store batteries in a cool, dry place away from heat and metal objects.
Intitial Charge Cycle:
Initially new batteries (all types) must be charged for 14 - 16 hours continuously. All batteries require a "break-in" period, so don't be alarmed if your battery doesn't hold a full charge right away. A new battery may show false full charge as indicated on your phone or charger. Also the battery may not power up the phone because of low voltage. For the first 3 - 5 cycles, please make sure to charge the battery fully and drain it fully before recharging. This will properly condition the battery and will ensure that it will operate at its maximum capacity. This is recommended for all cellular phone batteries. You can discharge most portable phones by unplugging the charger and leaving it turned on until completely discharged.
Naravno, svakom proizvođaču je lakše da kaže "punite bateriju 12 sati", jer će se baterija zaista i napuniti za tih 12 sati, ima raznih ljudi, i ne razume se svako u te stvari, plus što postoji toliko različitih tipova baterija da bi bilo suludo za svaku davati posebno uputstvo za punjenje, ovako je mnogo lakše. Da li to potrebno ili ne - naravno da nije, ali se proizvođač na taj način "osigurao". Nokia recimo preporučuje da prvih par punjenja traju po 4 sata, a i to je uopšteno, jer nekim baterijama treba više, nekim manje vremena. Što se tiče poštovanja ciklusa punjenja-pražnjenja, kod Li-Ion i Li-Polymer baterija to nije bitno jer one nemaju efekat "pamćenja" i mogu se puniti i dopunjavati proizvoljno. Eto, toliko o baterijama...
