The different types of portable chargers can be divided into self powered and externally powered units. Self powered chargers include a hand crank and solar units that derive electricity from kinetic energy of the sun. Externally powered units may have a battery pack or need to be plugged in, but remain small enough to be easily portable. These portable charger will often have a built-in handle to facilitate transportation.
All portable power devices can recharge a cell phone or music player, but relatively few can recharge a laptop battery. Smartphones fall in the middle. If you own an iPhone, Droid or Blackberry, do some research to make sure you select a portable battery charger that can do the job,such as Iphone External Battery. Most electronic devices that can be charged via a computer USB cable need a charging source with a 5V output rating.
After ensuring that the portable battery charger is compatible with all of your devices, check the device for safety features. A good charger will have built-in overload protection to make sure that the devices are never overcharged, sent too much electricity or short-circuited. These safety features are important and can prevent permanent damage to expensive electronics. In addition, these safety measures can alleviate any concerns about fire hazards that are possible with incompatible or inferior chargers. Keep in mind that the chargers some companies advertise as being able to fully charge your electronics in under an hour may be unsafe or potentially damaging.
Guangzhou Sunwith Co., LTD, established in 2005, is the subsidiary company of Global Vision Group (HK) limited. We are a professional and famous power bank manufacturer and exporter in China.Our own brand "Sunwith" has won a great popularity and market share. At the same time, OEM service is offered and we want to establish a long term relationship with customers all over the world.