With the rapid development of the global economy, and the continuous improvement of people's living standards, carry electronic products, such as notebook computers, tablet PCs, mobile phones, digital cameras, camcorders, portable DVD, PDA, MP3, MP4, GPS, thermal equipment, healthcare equipment. They are to be used in the battery, but these devices Original battery will be because of low battery capacity cannot meet the time of the normal use of the device. Travel or travel time and the peak of these devices work, often battery is no electricity at the crucial moment, especially when the phone is on the phone, a digital camera is taking photos, the PSP consoles play is in full swing and PDA is working and so on, you will feel very helpless and helpless. And you cannot put each of the devices are equipped with a battery backup, and due to high cost so it is not very easy. Based on this, in order to solve this trouble problem, the External Battery comes into being.
Principle of External Batteries
External battery is a set of portable device integrates electrical storage, boost and charge management. Storage dielectric generally use lithium batteries, because of the relatively small volume of lithium batteries, large capacity, wide market liquidity, affordable, widely used in digital products. Lithium voltage of 2.7-4.2V, the voltage with the decline in electricity consumption declined. Voltage of 2.7-4.2V is not charged directly to other digital products, because digital products lithium voltage is 2.7-4.2V, the voltage between the same potential cannot be charged. The out output power of External Battery Charger boost system must have a boost lithium voltage of 2.7-4.2V to 5V, so that you can charge to other digital products, such as mobile phones, MP4, Tablet PC, PSP, etc.
The Use of External Battery
With external battery can solve the power supply problem for many mobile devices, thus completely solve the power shortage in the pain to make work and travel carefree. Mobile power usually designed lightweight, compact, easy to carry, and to facilitate the use of the mobile. Mobile power use (4) demonstration charger fully charged mobile power for your digital products charge four or five times the power, connect your digital equipment with a suitable connector or directly with an USB cable to connect the USB On-the- Go (USB-OTG) portable device, mobile power began after automatic detection or simple switch to your digital device powered or charged. The general external battery power has the lighting function, so this is very convenient for many people.
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