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GoadBodner518 (토론 | 기여) 사용자의 2015년 6월 20일 (토) 09:39 판 (새 문서: When you are considering which Power Bank is best for you, there are number of things you need to know. Such as 1. Capacity vs. Portability The principal criteria to contemplate when...)

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When you are considering which Power Bank is best for you, there are number of things you need to know. Such as 1. Capacity vs. Portability The principal criteria to contemplate when buying a external battery pack is capacity, which is measured in milliampere-hour mAh. If you are concerned with scandal, you will perhaps want to learn about Click for more about this power bank product. The capacity of your devices battery is also measured in mAh, so loosely speaking, if your telephone has a 2000mAh battery, a 2000mAh battery pack is able to recharge it completely once. Nonetheless, simply because of energy lost due to voltage conversion and circuit resistance this is rarely the case in reality. The term "real capacity" refers to the actual power output of a energy bank after some power is lost as heat during the power transfer process. This is correct of all power bank. Even though you can get power banks with a larger capacity so that its in a position to recharge a device multiple times over, keep in mind that this generally also means that it is larger, heavier, and pricier. 2. The Battery Packs Input Current Its simple to persuade yourself to buy a huge-capacity battery pack. But one tends to neglect that the larger the capacity, the longer it takes to recharge. In fact, most people we know who have 15,000mAh battery packs leave them to charge overnight. One more issue that impacts how lengthy it requires to top up the charge is the battery packs input current. Most battery packs accept between .8 amps and 1.5 amps, with the higher currents typically found on the higher capacity ones. If you come across two seemingly identically-speced battery packs and both cost the same, this little detail could be the tiebreaker. Some battery packs allow themselves to be charged while theyre charging other devices. Even so, we dont recommend it simply because constant pass-through charging might influence the batterys lifespan. 3. Your Cell Phone Input Current Most smartphone-oriented battery packs output at most 1A at 5V through the USB port. Although this performs fine for most people, some may notice that their smartphone now requires a longer time to recharge as compared to when a wall charger is used. This is especially true if the phonecell phone is able to accept a greater current. Most tablets need at least 1 amp to charge too, with some drawing up to 2 amps. Take the Apple iPad Air for instance, which comes with a 12W USB wall adapter that supplies 2 amps. If you have been to plug the iPad Air to a battery packs 1 amp USB port, itll either not charge or charge super slowly. So if you are looking to charge a tablet, our advice is to acquire a battery pack thats capable of outputting greater than 1 amp at least 1.5A if youve an Android tablet, and 2 amp if youve an iPad. Lastly, theres no harm using a higher-powered port on a smartphone, as the device only draws what is necessary. In fact, it could even charge faster if it is able to draw much more power. 4. Top quality vs. Cost As the adage goes, "you get what you pay for". This is quite correct with power banks since the most crucial components, the batteries, control circuitry and safety characteristics are all hidden inside the power bank bank. Would you connect your pricey smart cell phone into a inexpensive power source that may possibly be cutting corners on safety characteristics like short circuit, over charging, and temperature protection mechanisms in order to obtain the low price. 5. Quantity of Ports Greater capacity battery packs also usually come with more than one USB charging ports. Naturally, more ports cost more money, and the quantity of ports you should go for depends on how many devices you carry. The most significant advantage of additional ports is that you can charge more devices at the same time. There are of course other power banks that have a total output of 4 amps so both devices are able to charge as quickly as they can, but as you can count on, they normally come at a premium..