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I am Allen. I like Music and Football. My Facebook: https://www.facebook.com/heling1682002

2017年2月16日星期四

Introduction of Power Bank Part 2

Basic knowledge of power bank

What is Power Bank?
Power bank serve as an extra battery' or external charger for your phone or other electronic devices. It is a portable power source built of rechargeable battery, packed in a small case that can be carried in a handbag or purse. It has at least one input for charging and another recharging port that can be connected to a standard USB cable that can recharge portable electronic devices like smartphones, media players and tablet PCs.
Most of the newest power-bank models, arrive with built-in Lithium polymer battery, which known by high efficiency and long lifetime. The capacity of power packs is measured by mAh and can reach 20,000 to 30,000mAh.
 Why do we need portable power source?
Well... the answer is that, the need of an accessible power source is vital for our daily survival. The average adult carries with him at least two electronic devices like smartphone, digital camera, MP3, laptop and tablet PC. And the truth is that we now depend on these devices to stay connected to the web, family and work. So what happens when your smartphone battery is dead? You will probably start to feel uncomfortable and pressure and if you didn't take your charger with you or in worst case you are staying outdoor with no accessible power port, you won't be able to use your smartphone.
The solution for this situation is to carry a power bank with you, it can recharge your electronic devices everywhere you go without the fear of going offline in the middle of a working day or even when you travel.
What’s the common REAL CAPACITY in 18650 power bank in the market?
- Power bank using 1pcs 18650 is 1200mAh – 2600mAh
- Power bank using 2pcs 18650 is 2500mAh – 4400mAh
- Power bank using 3pcs 18650 is 3750mAh – 6600mAh
- Power bank using 4pcs 18650 is 5200mAh – 8800mAh
- Power bank using 5pcs 18650 is 6500mAh –11000mAh
- Power bank using 6pcs 18650 is 7800mAh –13200mAh
- Power bank using 7pcs 18650 (no info)
- Power bank using 8pcs 18650 is 10400mAh –14400mAh
What’s the different between branded power bank and generic power bank?
Branded power bank mostly sell in REAL CAPACITY. Generic power bank mostly sell in MARKING CAPACITY. That’s the reason why you will never see any branded power bank (standard size) have anything as high as 30000mAh – 50000mAh. That’s also the reason why a good 12000-13000mAh power bank are able to charge more or about the same like the market 30000-50000mAh power bank
Is it true branded power bank won’t explode and generic power bank will explode?
Anything to do with battery, will have chance to explode. No matter it’s branded power bank or generic power bank.But chances for both branded and generic power bank to explode are near to 0%.If power bank is easy to explode, everyone will use power bank in war instead of bomb.
More knowledge about power bank: https://powerbankfans.quora.com/

Introduction of Power Bank Part 1

Basic knowledge of power bank 

What is mAh?
mAh means milli Ampere Hour, the capacity of the power bank is measure with mAh.
Where is power bank made from?
Majority of the power banks in the market are actually made in China.
How do I charge the power bank?
You can charge your power bank via the charger that came with your phone, computer USB port or using other power bank.
How long do I need to charge the power bank?
It's depending on the REAL CAPACITY of the power bank. The larger REAL CAPACITY, the longer charging time may required. Different charging methods may result different charging time as well. Charging with the original charger will be faster than charging with computer USB port.
Why sometime I need longer time to charge the same power bank?
Even though using the same charging method, the charging time may be differ due to environment,temperature, power flow and etc.
A 12000 mAh REAL CAPACITY power bank, able to charge a 1500mAh capacity phone for 8 times full?
This is a common mistake make by most of the people. For rough calculation of the total charge time, kindly use this formula
REAL CAPACITY * conversion rate * phone battery health / phone capacity = total charge times
EXAMPLE: 12000 x 0.8 x 0.8 / 1500 = 5.12 charge times (0.5-1 times plus minus)
What's phone battery health?
In simple, it's mean how a healthy' your phone battery is. Phone battery storage capacity will be lower and lower. That's also the reason why our phone can last longer when it's newly bought than after 3-6 months we used it. Different mobile phone models also will affect the calculation as some phone drain battery faster than the other.
What's the different between branded power bank and generic power bank?
Branded power bank mostly sell in REAL CAPACITY. Generic power bank mostly sell in MARKING CAPACITY. That's the reason why you will never see any branded power bank (standard size) have anything as high as 30000mAh a 50000mAh. That's also the reason why a good 12000-13000mAh power bank are able to charge more or about the same like the market 30000-50000mAh power bank.
More knowledge about power bank: https://powerbankfans.quora.com/

2016年12月9日星期五

Best app to take your selfie pictures?

Hi, I am Allen. I do not like take selfie pictures buti think i can give some suggestion for cool photo editing apps that suitable for iPhone photographers.
Snapseed
Sometimes there is a problem with the composition, but the picture is smaller and you are forced to erase the scene that you might like by cropping and rotating the photo. Then you should try the deformation tool of Snapseed, we can use vertical mode, horizontal mode or rotation mode after into the deformation process to adjust the 3D stereo perspective of the photo, such as change the original look directly of photography to the angle from the top-down shooting.
We can set the brightness, exposure, color temperature, saturation and other different brush in the brush tool, and then brush the photo by your finger to smear any small place on the photo, you can change the effect of the place alone as if you were painting in every detail on the picture.
You do not need brighten or color a whole photo by using brush , but as long as we need to modify the local scope of which we need, it’s intuitive and simple.
VSCO
Open VSCO, you can import photos from the smart phone album or take a photo directly. You can go to the VSCO Grid to see other people’s seductive photos, of course you can also search for known photographers. You need to register an account at first if you want to interact with the official website.
VSCO probably is the app which has most photographic effects of the film, you must try to feel proud of the filter which is the most characteristic, perhaps layman after used even would change the view of photography. After VSCO Cam update 10 filters, a variety of styles you can try. Many people have paid for its filters, and I suggest that new users can play free filters at the beginning, its ubiquitous film tones and charming texture will conquer you.
Lens Distortions
You may have seen a lot of various types of color apps, and you are tired of a simple color conversion. Lens Distortions’s details of the modification and effects such as halo, smoke and other stunning styles which instantly make their own photos have superb texture. This photography app specifically for the photo to add special effects which bring you some freshness. You can make photos full of artistic conception by simple operation.

2016年10月8日星期六

Difference Between Water-proof And Water-resistant ?

This is Allen He. I have written : Difference Between Water-proof And Water-resistant by Allen He on Travel



More and more devices become water-resistant or water-proof, users have an important question: What is the difference between water-resistance and waterproof? Users just want to figure out how their devices can stand with water.
Firstly, here are definitions from Oxford English Dictionary:
Water-proof means impervious to water.
Water-resistant means able to resist the penetration of water to some degree but not entirely

Comparing to water-proof, water-resistant is the lower level of water protection. Some water-resistant devices always have some special design to fight with water and make it difficult for water to enter. This is always use in devices like watches to help them survive from hand washing or raining.
The first number after letters “IP” shows it solid protect, which is measured form 0 to 6, while the second number is the degree of protection against the entry of moisture, the rage is from 0 to 8. To transfer these two numbers to the meaning we understand, you can follow two charts below:


Water-proof devices may look safer to stay underwater. Consider about the definition, there shouldn’t have gotten any problem for using them underwater. But, in fact, there is none standards for industry to stipulate water-proof. For some products, it may fully be protected from water, but others may just be able to survive underwater for a period of time. This totally depends on makers.



How can we know the ability for devices to survive underwater? The only and thing we can use to measure is a rating scale called Ingress Protection Rating scales or IP Codes. It is made of letters “IP” and one or two digits, such as IP34. International Electrotechnical Commission(IEC) design this rating scale as a system for classifying the degrees of protection provided by the enclosures of electrical equipment.


We can take IP67 iPhone 7 as an example. The IP Code shows it can be fully protected from solid, and at the same time, it can stay up to 30 minutes underwater for 1 meter depth. But, normally, the water resistant testing is operated under fresh water. Unless it is guaranteed by the manufacture, there isn’t any protection against salt water or sea water.

2016年9月19日星期一

Best Wireless Charging Devices For Frequent Traveler


I travel a lot, I used to worry about making my phone’s power last the whole day. I’d always bring my charging cable, but most of the time, I’d have trouble finding a power outlet to plug it in. Thankfully, I’ve discovered wireless charging during my stay at the Marriott, so now I have a more convenient option for charging my phone on the go. Since then, I’ve become interested in wireless charging and tested various chargers on my travels to see which one would work best.

Here are my top three picks for the best wireless charging devices for the frequent traveler:

QiStone+ Wireless Portable Charger QiStone_beauty_copy_copy.png

Lightweight and portable, the QiStone+ earns points for being one of the most stylish wireless chargers I’ve ever seen. It looks like a stone with the grains in all the right places.

Weighing only 4.76 oz, the charger doesn’t feel like its adding much weight to my carry-on bag. Its rounded edges give a good grip, too.

The QiStone+ also comes with a USB port for wired charging that you can use to charge another device while you wirelessly charge another device on top. So if you have gadgets that aren’t Qi-enabled, you can use QiStone+ with those just as you would with a power bank.

I also like its four indicator lights that let me know how much power is left in my wireless charging pad. This gives me enough time to plan when and where to charge the QiStone+ device, so I’ll always have a charging backup wherever I go.

Prelude Portable Wireless Charger
Prelude-Black_1024x1024.jpg

Truly a versatile device, the Prelude can give three full charges for iPhone 6, 2.5 full charges for Galaxy S6/Edge, and 20 full charges for Moto 360. A friend borrowed mine and found that the wireless charger also worked with his GoPro Hero 3+.

Like the QiStone+, the Prelude has four small light bulbs on the side to indicate how much juice is left in your charger. Its flat surface makes your phone secure on top while it’s charging. This feature also ensures that your gadget maintains direct contact with the Prelude’s surface for continuous charging.

Although the World Health Organization has put to rest some concerns about EMF emissions, it’s also good to know that this charger supposedly emits only ionizing energy, which is safer to one’s health.

3. ChoeTech Stadium Qi Fast Wireless Charger

56fcf50b90d34.jpg

I bought this charger simply because it’s cheap. However, its great features are definitely worth more than its price. For one, it can easily fit into your jeans’ front pocket or the small pockets of your slingbag.

The ChoeTech Stadium Qi has a flat surface, so your phone will stay in place and charge continuously. The charger itself also won’t move around because of the four plastic feet supporting the pad from the ground. Basically, this no-fuzz, no-nonsense wireless charger can be used anytime, anywhere.

Traveling comes with its own inconveniences, but with innovative products that address our common charging woes, we no longer have to be slaves to these pains anymore.

Tips: This article was written by my friend: Joan Kissler. Thanks for her hard work and support for my blog.

2016年9月18日星期日

Best Power Bank for Apple iPhone 7

After months of guesses and rumors, Apple followed a set pattern for the release of iPhone 7 and iPhone 7 Plus on 7th September 2016. iPhone 7 adds the function of water and dust resistance (IP68 standard) like several Samsung and Sony phones did, the installation of  64-bit processor A10 ensures the processing speed is 40% faster than iPhone 6S.  
iphone7

Another controversial rumor had been proven to be true — No headphone jack. Instead, Apple’s new EarPods headphones will connect through the Lightning connector port, a corresponding converter comes along with iPhone 7 in the box. 
iphone-7-headphone
For jogging enthusiasts and commuters Bluetooth earbuds / headphones are obviously easier to carry and unlimited by the wires. How to find proper Bluetooth headphones might be the first priority, while another problem is coming around the corner — battery life. 
iPhone_7_battery

As we all know, keep Bluetooth function open is quite power consuming, not to mention when you are enjoying music or watching video. Apple claimed that iPhone 7  is up to 2 hours longer battery life than iPhone 6s, however, consider the battery performance of iPhone 6s and possibly more power needed for Bluetooth, HD Retina display and A10 processor, another gadget should be on the must-have accessories list — power bank for iPhone 7.
According to the data comes from tech leaking media iPhone 7 features a 1960mAh battery, which is a slight upgrade from the 1715mAh battery found in the iPhone 6s,  a power bank with capacity no less than 5000 mAh basically can meet the power need for one day use.
iphone7_battery_charging
Best power bank for iPhone 7
With 6700mAh capacity it’s able to charge iPhone 7 well over 2 times, the installed power IQ technology can speed up the charging process as much as possible. Apart from that, Anker power bank has enough security measures to protect your device from power related issues.
Anker_Astro_6700mAh_Power_Bank
The ultra slim size is compact enough to fit in your pocket. It features fast charging facility at 2.4 amps which are higher compared to other power banks. Besides that, EasyAcc power bank provides built-in MFi-Certified Lightning Cable, no need to carry extra cables and get fussy with tangling when you need to charge your iPhone 7. 
mfi-easyacc-ichoc-5000mah-power-bank
To be compared with EasyAcc power bank, MoKo power bank features extra 1000 mAh, the stylish silver color looks extremely cool.
Moko_MFi_6000_power_bank
It’s a very handy battery pack which can fit well in your palms. After wrapping up the reviews at Amazon, most users got satisfied with the small size, capacity amount and cheap price.
Ravpower_6700mAh_power_bank
Jackery_Bolt_6000mAh_Power_Bank
With both lightning and micro USB cables you can easily get your Apple and Android devices charged on move. It’s definitely one of the best power banks for iPhone 7.

2016年8月17日星期三

3 Best Solar Charger For Your Laptop


Solar power is a clean and renewable energy, which could be transferred by solar charger to enable people use it to power a phone or small device when in an emergency or off the grid. So get more tips on choosing the best solar charger for Laptop will be helpful. There are some lists of the best portable solar laptop chargers but since I writing I find more solar kits have come to the market. Here are some solar chargers for laptop hope you will find the one you like.
1.RAVPower Solar Charger With Triple Ports
High Efficiency up to 21.5%-23.5% is highlighted in the description, but what’s more attractive, the solar charger is designed with triple USB ports to afford power to more devices at the same time. Sometimes, more is better, right? I recommend the RAVPower solar charger with triple USB ports as the most delicate solar charger for laptop in UK.
Price: £52.99 Watts: 24W
2. Anker PowerPort Solar Lite
As the best seller of power bank in Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more, Anker should never let it go to build an awesome solar charger for Laptop. With the size, 11 × 6.3in folded or 18.1 × 11in opened, it allows easy attachment to backpacks, trees, or tents. And only 12.5 oz make it ideal for long treks. There is no worry to carry too much heavy extra package when your laptop is not so mini-size, you will thumb up. I recommend the Anker powerport solar lite as the most popular solar charger for laptop in UK.
Price: £37.99 Watts: 15W
3. EasyAcc Solar Charger With Smart Technology
Best Solar Charger For Laptop in UK, EasyAcc 28W solar charger
Based on its first version, EasyAcc released the 28W solar charge with four SunPower solar panels this year. It’s said that EasyAcc 28W solar charge is the biggest one when compared with other products. Correspondingly, the solar charger can be neatly folded (282x160mm / 11.1×6.3 in) for portability. About the smart technology, you must feel familiar with it if you are a fan of EasyAcc. Advanced smart technology, automatically identify the device connected and output fastest current to achieve the efficiency of original charger. EasyAcc brings smart technology to their new solar charger to make each USB ports featured with the biggest current for each devices. I recommend the EasyAcc 28W solar charger as the best solar charger for laptop in UK.
Price: £49.99 Watts: 28W