Monthly Archives: January 2016

What exactly making impact on our phone charging rate

Almost everyone charges the cell phone every day,we certainly hope that charging rate is sooner, unfortunately, the charging speed is sometimes getting slower and slower, what exactly making impact on our phone charging rate?

USB-Power-Adapter USB-Power-Adapter-Application

NO.1 the charging temperature
The temperature is the main factor easily overlooked. At low temperatures, low temperature protection mechanism will lead to that the lithium battery material does not chemically react, and therefore the mobile phone can not be charged or charging speed slows down. Please try to charge the mobile phone At 15~25℃.
NO.2 unpaired USB charging adapter and USB charging cable
Please do use original USB charging adapter and USB charging cable with official configuration pairing phone or tablet accordingly,if you use the iPhone USB adapter to charge iPad, you’ll find the charging speed is pretty slow.Take the iPhone 6 for example,please use the iPhone 6 USB charging cable and USB charging adapter to charge it.
The current USB charging cables support varies. If charging slow, it is likely that you do not pick the right charging cable, please mark them to distinguish different charging line.
NO.3 annoying dust
if you are not accustomed to clearing up the USB cable port and cell phone charging port,the longer the lifespan of the smartphone,the more the dust accumulated,that’s why the charging rate of cell phone is getting slower and slower, timely wipe the dirt on the usb charging cable with alcohol, use a needle or toothpick to clean the phone charging port carefully, or the charging port is equipped with dust plugs.
NO.4 charging tip
l the charging rate is basically fastest when the mobile phone is powered off, if you do not want to shut down, the flight model is the best choice to accelerate the charging speed.
2 avoid access the mobile phone to host USB port to charge.
3 avoid charging the phone unless the phone battery charging low battery alarms.

Dose car charger make adverse impact on mobile phones

Car charger is a device used frequently, then onu mall will explain for those wondering whether car charger make adverse impact on mobile phones or not.


There is substantially no adverse impact for brand original car charger.Why?Car charger is one of auto accessories charging digital products at any time in order to facilitate vehicle owners to use. Some high-end car charger typically includes two USB ports, which can simultaneously charge two digital products. These products generally feature overload protection, short circuit protection, high voltage input protection, high temperature protection to ensure safe use to realize car charger direct charging, USB charging and triple multi-use while being charged in the car.


The voltage outputted by car charger is typically 5V transferred from 12v-24v and limiting current is 500mAh, for those knock offs without protection function, the circuit has many flaws, if the buck and current limiting circuit fails, it will lead to 12-volt direct accessing to the phone, resulting the phone  burned. It is recommended to use the the original charger after car inverter volt rising to 220.
Conventional car charger powered by car battery (car 12V, trucks 24V) is widely used by a variety of portable, rechargeable handheld devices equipped with lithium battery, such as: mobile phone, PDA, GPS, etc; car charger do not only consider the actual demand (constant voltage CV, constant current CC, OVP OVP) on lithium batteries, but take into account the harsh environment of automotive batteries (transient voltage spikes, the system switching noise interference, EMI, etc.); therefore Power Management IC of car charger program must be switching power supply chip featuring with high pressure, high efficiency, high reliability, low frequency (in favor of EMI design).

What exactly affects the charging speed of our mobile phone

Smartphone charging process is performed by the collaboration of three parts, namely: cell phone power adapter or cell phone charger, data cable, mobile phone. Subjective factors including the phone itself,cell phone power adapter or cell phone charger, and a data line and objective factors including the weather and how to use the cell phone are the key factors impacting on the rate of charging the phone.


The larger the capacity of the mobile phone battery, the longer the charge time

We shall firstly figure out how to calculate the charging time before what make a impact on the speed of charging the phone, the charging time can be calculated with a simple formula: Charging time = factor (typically greater than 1) × battery capacity (mAh) / charging current (mA) . That is the Large-capacity cell phone battery charging time corresponding to the long charging time when the charge current is constant; similarly, small capacity battery corresponding to the a short charging time.

Thus, it is necessary to charge more prolonged electricity for our phones in order to meet the needs of using mobile phones for a long time when charging current is kept constant as the mobile phone manufacturers increase capacity .


Moreover, in practice, the current is based on the load (ie cell phones) connected. Just within the limits of its resources,the cell phone charger can provide much current the phone needs. If the current required by the phone exceeds the current limit the cell phone charger can provide, then the cell phone charger would have been outputting the maximum current. So when the battery capacity is the same, the charging time will be faster as the current the phone itself can carry increases.

Power adapter charging specifications affect the charging rate

The output voltage of most brand mobile phone standard charger is currently standard 5V, but the output current which would be equipped with by the manufacturers depending on the battery capacity are different. Assuming the assumptions voltage is same , the difference between 0.5A, 1A and 2A cell phone charger just like bicycle single-lane, two-lane and four-lane highway- a charged battery is also be doubled as current is per doubling over the same time. So for iPhone charger with a maximum only 1A output charging iPad and 2A original charger charging iPad, the former theory charging time is 2.1 times the latter.

Therefore, when charging the cell phone, you should try to choose the original cell phone charger or those whose output current is not less than the original standard charger in order to ensure that the phone’s charging speed is fast enough, .

The data line with poor quality is the”murderer” slowing the charging time
Generally it is too difficult to identify a clear difference from the appearance of the data lines, so all the interface mixed like a routine, but the current provided by different data lines may be different.

Many low-cost data line looks very thick, but its internal core is actually pretty thin, or those meant to be made by pure copper wire replaced by aluminum wire are knock offs. In addition, poor quality data cable connector contact material and welding may be abnormal, these problems will lead to increased resistance, standard data line resistance should be 0.5 ohms, while the poor line may reach 3 to 6 ohms, the charging efficiency decline definitely in 6 fold to 12-fold.

Easily overlooked weather

It is because the winter is too cold that the phone unable to be fully charged or charged. Because the lithium battery most smartphone uses features with protection mechanism in extremely low temperature resulting in the deposition of metal lithium which would be no longer react chemically with substance, leading to a short circuit inside the battery, that is why the phone could not be fully charged or charging speed is very slow. When the temperature is too high, this issue will appear.

Apple said that the 22 ℃ room temperature is most beneficial to iPhone charging,so do the Android phones using the same lithium situation. When the temperature is too low, we need to remove the cell phone to the warmer environment,the cell phone would not be normally charged until the lithium battery temperature exceeds the low temperature protection threshold (iPad, laptops, etc. is generally 5 ℃, the cell phone is generally about 0 ℃), when the battery is hot, you could remove the cell phone case or place it on a cold table to increase the charging speed. Therefore, the temperature is a more important external factor making affect on the rate of phone charging, proper temperature helps improving charging speed of mobile phone.

The proper charging techniques can help increasing the charging rate

Lithium battery would start lithium battery protection when it is running out of power, the phone can not boot, the charging time is longer. Charged cell phone batteries need to wait a long time to wake up, shutdown protection function. So try not to remind charging until the battery runs out.

As we all know, various programs running consume power after the phone is switched on, it will naturally drag the “charge rate”. So you would better turn off the App and the phone screen. Of course, it would be able to more power if we can shut down or transferred to “flight mode”, the charging speed is even faster.

In addition, some like charging via computer USB charging port,which takes longer to charge by comparison with on the charging in the outlet. Under normal circumstances, the maximum output current of computer front USB port is only 0.5A, the charging speed is very slow. If you have to use a computer USB interface to charge, you can use the computer rear USB port because its current is more stable than the front port, the charging speed of mobile phone is relatively slightly faster.

What shall you mind when using the car charger

First we have to figure out what the difference between the car charger and common charger is , the fundamental difference between them is basically the plug – car charger  plug is specifically linked with cigarette lighter in the car (usually in the cab and luggage box)


The other end of the car charger is specifically designed with the USB port  the cell phone or other digital devices can be connected to.Which data lines connected to the car charger  depends on which digital device you use.
The car charger does not work unless the LED indicator lights is lighting up.
Note that, do not charge the phone until the car engine is started! Otherwise, when the car is ignited, the reduction in voltage  of car battery will affect the charging effect, or even damage the car charger.
Furthermore,do not place the charger to moisture or high temperature environments, the use of a suitable temperature is 0-45 ℃;


There will be some heat during use,be sure not exceed 60 ℃ in normal room temperature;
Since various types of rechargeable product are different, the charging time is inconsistent, it has nothing to do with the charging performance of car charger;
Keep away from children;
Avoid lightning;
Promptly pull the plug when the car charger is fully charged, careful not to dirty the USB interface, remove the installed car charger and put it away when not in use.
So, for safety reasons, be sure to buy the regular brand, buy genuine, inferior products prone to security risks. Also in the use of time, please do follow the instructions to correct method of packaging in the corresponding.

How to pick up a safe and reliable car charger

1,the car charger must be equipped with 12V input fuse installed

Bluetooth Car Charger with Stereo MP3 Player

2,the car charger with 5V output overvoltage protection would not lead to the unexpected cell phone shorted

3, the current output capacity of the car charger reaches truly 2A

4, if the level voltage is lower than 11.2V voltage, 5V output is cut off, please do not access to the external power supply

Car-Charger (4)

5,12V input is able to withstand high-voltage 80V  transient (car tend to activate an instant 80V  high-pressure for the automotive ignition)

6, just do not be tempted by brand new car charger, you shall mind the internal circuitry and components,those with following features must be not disappointed.


with the fuse,those without the fuse will result in short circuit
with the output current of 2A in case of very slow charging
with low-voltage, overheating and overcurrent,otherwise, it would be easily  damage to the car battery
with 5V voltage output protection preventing the phone or electronic device from being damaged
with flying leads on  the internal PCB of  car charger no problem are unreliable

What is PC hard case

PC: Polycarbonate, it is a colorless and transparent amorphous thermoplastic material. Unlike silicone protective case and TPU protective, PC case is hard, PC plastic toughness is pretty good, light transmission is pretty impressed,take the iPhone 6s for example, there are PC pure transparent PC iPhone 6S hard case, transparent black PC iPhone 6S hard case and transparent blue PC iPhone 6S hard case and others available.


Pros: good transmittance, hardness, resistance to fall, light

Disadvantages:dissatisfied scratch resistance

PC hard iPhone 6S case has three processes
1.vacuum plating process: electroplate, then carve some of the patterns on the PC housing, UV varnish.
2.PC spraying: spray rubber oil, or the transparent red, transparent blue, transparent yellow, etc.Those spraying a layer of primer on the transparent PC case and laser engraving pattern and spraying a rubber paint are slightly better.

PC thermal transfer process: transfer patterns on the PC housing , and then spray UV varnish or soft touch rubber oil.Those spraying rubber oil are better. The disadvantage is that the surface does not resistant scratch.