OPSO External Battery Power Bank Special For Apple iPhone & iPod

More and more people like to use the Apple products, such as laptop, iPad, iPod, iPhone, they popular with the public. We can use the them to talk with friend and family, and play the facebook,twitter, working and many other things, they are very important for us in the living, we can't leave them all over the whole day, they become our most intimate partner, we can contact the world via them, but they need to use the electric energy to work, so we all should have realized that a backup power is very important. The OPSO batteries are special for them.
The OPSO series product are authorized by Apple and certified by MFi, made for the iPhone & iPod. These products include external battery pack, USB cable, car charger. The OPSO external battery pack:  have A USB port and a Micro USB port, Portable & stylish design, including 2 in 1 dock USB cable, it will be the ideal backup battery pack when you travel out.

OPSO Car Charger: 15W 3A, dual USB ports heavy-duty high-output for iPhone 5 / 4 / 4S / 3G / 3GS, iPad, iPad 2, the New iPad (iPad 3), iPad Mini, iPod, Android smart phones, GPS, tablets.

Solar Charger battery Buy Guiding

There are so many portable solar charger battery on the market, some of them are useless and poor quality.
Since most newer solar charger battery upport charging from USB ports and come with USB cables, it would be beneficial to choose a solar charger hich can provide output via a USB port Although one must be careful that the voltages given are between 4.75v and 5.25 volts. While a low voltage can cause your device to not get charged, a high voltage can cause damage to your device.
Small solar panels provide small currents, a system with one solar panel only would be rather useless. This is because you have to leave your device charging under the sun for several hours to be able to receive a decent charge. Instead one should look for a portable charger with in-built rechargeable battery. So you can leave the charger out in the sun for charging itself and later charge your phone. Most of these portable charges can also supply power from the solar panels while charging a mobile device from internal battery as well. While the charging systems without internal battery are very cheap although not very usable.
One should also consider is that a solar charger battery should with an on-off button if possible. Most portable solar charger battery without an on-off button do use a small amount of current by themselves and if left alone for long time can drain the battery and can cause lithium-ion/polymer batteries within themselves to get damaged irreversibly if they do not have a low battery protection circuit.
If the supplied cables are accidentally mixed up with some standards based USB cables or use those cables in your computer and between your device can cause either your mobile device or your computer to get damaged. Also, loosing the cables would be bad since you cant just get standard replacements.
If possible one should consider brand name devices for reliability and durability. Most cheap replicas apparently flawed in design and do not have the necessary reliability features for long term usage.

I have bought one solar charger from PoweraddDirect on Amazon, the solar charger battery has a USB Cable with 4 Connectors of Charging Adapters. fit for iPhone, iPod, iPad, samsung, blackberry, HTC, LG many cell phones. The USB ports are supposed to provide a 5v. solar panels with silicon cover. The one is 7200mAh, I can charge my iPhone 4 3 Times, it is good quality,  it is only $35.99 sell on amazon store. 

If you have any good  solar charger battery please tell me.

Power Tool Electric Tool History

In 1895, Germany overtone to create the world's first direct current drill. The shell made from cast iron, can drill a hole in 4 mm steel plate. Then appear the three-phase power frequency (50 hz) drill, but the motor speed can't exceed 3000 r/min. In 1914, a single-phase series motor driven power tools, motor speeds above 10000 r/min. In 1927, the power supply frequency is 150 ~ 200 hz frequency electric tool, it not only has the advantage of high single-phase series motor rotation speed, but also has the advantages of simple structure, reliable three-phase power frequency motor, but because of it need medium frequency power supply, current use is limited.

Your Best Friend In Travel - Solar Battery Power Bank

When you travel out,it is inconvenient of using electricity, but you want to use your mobile phone, your ipad, iPod, mp3, they all use electricity and your battery storage is limited, you need a lasting electricity supplier, so the solar battery power bank will your best choice. It can supply you the electricity and only need the sunlight.
The principle of solar mobile charger Working:
In the sun, the solar mobile charger is transfer through the light energy into electricity and stored through control circuit to the built-in battery, it also can make the luminous energy directly to electricity for mobile phones or other electronic digital products charging, but must be based on the luminosity of the sun, in the absence of sunlight, can be stored by alternating current into direct current (dc) and the control circuit to the built-in battery. Use solar power to charge, it is very Environment

You can choose a high capacity solar panel battery power bank add power for you when travel out.

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