The portable battery is a set of portable charger that integrates power supply and charging functions in one, used for mobile phones and other digital devices or used as or standby power supply anytime and anywhere. Usually, it uses lithium batteries or dry batteries as a power storage unit. It is different from the product the internal configuration of the battery, and it is also called an External Battery. Generally, it is equipped with a variety of power adapter, it usually has the characteristics of large capacity, multi-purpose, small size, long life, safe and reliable, available anytime and anywhere to charge for mobile phones, MP3, MP4, mobile phone, PDA, handheld computers, handheld game consoles and more kinds of digital products power supply or standby charging function products.
Digital Camera External Battery
Electricity consumption of the digital camera is very alarming, especially in the boot and shot. Addition to buy batteries, it should be coupled with a portable battery for digital camera batteries or with an external power supply to the digital camera. Due to the characteristics of the large power of the digital camera, the external power supply to provide a large enough current. Generally, it is recommended the small portable models of 1.5A, recommended that the external power supply current power consumption of the larger models is more than 2A. The low-end DC power has rectifier circuit and without voltage regulator circuit, the power is shortage. Once the power is not big enough, the voltage will drop, so the digital camera is not working properly, and digital camera will be prejudiced. The configuration of the original power is able to provide a stable working voltage, current, in addition to high-frequency filter ring (something) on the power cord to prevent interference circuit camera work.
Working Principle of Portable Batteries
Portable battery is a portable device integrates electrical storage, boost and charge management in one. Storage dielectric generally uses lithium batteries, because of the relatively small volume of lithium batteries, large capacity, wide market liquidity and affordable price, so it is widely used in digital products. Lithium voltage is 2.7-4.2V, the voltage with the decline in electricity consumption declines. 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. So the output power of portable batteries must have a boost system, to boost the 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.
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