• Excellent Material: Glossy and luster apperance,made up of high quality aluminum alloy and superior microchips, comfortable touching,durable uses and outstanding looks with a vibroswitch.
  • Portable Charger: Ultra compact, slim and portable for carrying in pockets and bags, perfectly for traveling uses.
  • Smart Management :High compatibility with most of the cell phones and 5V tablets in the market. The conversion rate is up to 85% always strongly back up devices.
  • Capacity: 4200mAh can fully charge iPhone6 2 times, iPhone5s 2.2 times, Samsung S5 1.3 times, Samsung Note4 1 time.
  • Safety: Built-in 7 defense systems for mulitiple protection: input overvoltage protection, short-circuit protection, temperature protection, output over-current protection, output overvoltage protection, over charge and over discharge protection. Perfectly protect your device from charging accidents.

Buy from Amazon.com

Product Description

Power Bank Oohyo 4200mAh External Battery Ultra-slim Pack for iPhone, iPad,Samsung Devices, Cell Phones Tablet PCs(Blue)

Oohyo Power Bank 4200mAh

Oohyo engages to make funny technology.

Oohyo 4200mAh External Battery ?Cmade up with high quality Lithium Ion battery and Aluminum alloy material, comfortable touching and very fashion appearance, perfectly charges your digitial devices when traveling out, high compatible with iPhone,iPad, Samsung Cell phone and any 5V tablets.

Convenience & Fashion
4200mAh capacity can effectively charge iPhone 6 2 times, and conveniently charge any low power devices when you are on-the-go, traveling, business trip, or handing out.
Portable, lightweight and compact size are definitely easy and convenient to carry.
Novel appearance and fashion looks, specifically designed for stylish girls, elegant women and juniors.

Capacity: 4200mAh
Input: DC 5V/800mA
Output: DC 5V/1.5A

Package Includes
1 x Oohyo Power Bank
1 x Micro USB cable
1 x User Guide

Note: “Synchronous Charge Discharge” is not supported by this device

How to choose the best portable battery charger for smartphone

Load capacity

The millimeter-hour (mAh) battery specification indicates the maximum amount of power your loads can receive. In this way, the higher these values, the greater the capacity of their loads. So the first thing to keep in mind before buying a portable battery is to see if the total values ??of your charge exceed the capacity indicated on the phone’s battery.

Battery power

It is important to choose a portable battery that has a power output power, indicated by the values ??specified in Watts (W), equal to or greater than the charging power of your smartphone.

If the electric current coming out of the portable battery is less than that needed to charge the gadget, the device will not charge. However, the higher the value of this current, the faster the battery can be recharged.

The service life

Remembering the power loss of the external battery when transferring your mAh amounts to smartphones, it is important that your users also evaluate their charge cycle. Also known as a useful life, this cycle can be calculated by comparing the mAh values ??of your portable battery capacity with the mAh indication on the device’s battery specifications.

5 tips to increase the battery life of your mobile phone

The most current gadget is powered by lithium-ion . They are quite different from batteries used in older devices, such as nickel-cadmium , and some procedures that help extend the life of older batteries may have the opposite effect on newer technologies. See five tips for your cell phone’s battery not to leave you in the hand with little time to use.

If you are going to charge the phone at night, remove the
Most smartphones today are smart enough to stop powering the battery when the charge reaches 100% , so there’s no need to worry about that. But if you go to sleep with a cell phone in the socket, it’s a good idea to take off the hood: lithium-ion batteries are extremely sensitive to heat and the measurement can increase their life.

Do not store the battery empty.

An empty battery is unstable, and can cause serious injury if it is taken out of the drawer after one or two months of use. Ideally, you store your battery with about 40% of the charge . It tends to lose something between 5% and 10% of the energy stored each month spent in idleness, a security rate good enough to prevent explosions when it is put into the power outlet.

Do not let yourself beat 0% or 100% frequently

Modern batteries do not like extremes. Ideally, if possible, always carry it from 40% to 80%. A full recharge cycle is exhausting and the battery life is shortened.

Make small daily refills

Contrary to what most parents think, the lithium-ion batteries used in modern cell phones do not suffer from memory problems like their older relatives, those of nickel-cadmium. That is, they will not hook up at 80% if you do not have time to leave the phone in the socket until it reaches 100%. On the contrary, small daily recharges , which keep the level above half, help increase battery life.

Do not use the fast charge mode

Lithium-ion batteries are sensitive to heat and sudden variations in electrical voltage . They prefer everything to happen slowly and always. The fast charging option available on some Android devices , therefore, can even break a branch from time to time, but it is very harmful to the health of the device.