Have you have want to know why a charger charges faster than another charger on the same phone or why it takes a longer time for a phone to be fully charged? How to charge your phone very fast. Be calm! This article will explain everything to to you..
Let’s get started!
What is mAh or mA Of A Battery?
If you are observant, you must have seen it on your power bank, phone’s charger, your phone’s battery or any electronic devices. mAh is usually found written on your phone’s battery or power bank and mA is written on your phone’s charger. What does it mean, you may ask.
The mAh specification of a battery or any device simply means milliampere-hours. mAh is the amount of milliamperes which a battery can supply to a circuit or device for one hour. It is also how long a battery will will be able to last in a device or circuit.
If a battery has a mAH specification of 2600mAh, it means it can provide 2600mA (milliamperes) for one hour. Likewise a battery with a mAH specification of 20,000mAh can provide 20,000mA for 1 hour.
How to calculate how long it willt take a battery to be fully charged.
This depends mainly on two factors which are:
• The mAh of the battery
• The mA of the charger.
If the mAh of a battery is 3000 and has to be recharged. The time taken for the battery to be fully recharged depends on the mA of the charger. Let say the mA of the charger is 600mA and is to be used to recharge a 0% battery of 3000mAh, it will take 5hours for the battery to attain 100%.
Thus,3000mAh battery can be recharged in the following ways:
- 800mA charger will take 3.75hrs
- 1000(1)ma charger will take 3hrs
- 1500(1.5)mA charger will take 2hrs
- 2000(2)mA will take 1.5hrs
Thus, we can conclude that the higher the mA of a charger the faster the phone’s battery get charged.
In a scientific term
The time taken for a battery to be fully charged is directly proportional to the mAh of the battery and inversely proportional to the mA of the charger provided there is no energy loss.
So whenever you want to charge your phone’s battery very fast, always watch out for it mA value. The output voltage of every phone’s charger is usually constant (5V), only the MA varies.
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Practically, this estimation will not be true due to energy loss through heat and resistance and also if the battery is in use during charging . That is why it is advisable to turn your device or use flight mode while charging it. Even so, there will be still be energy loss. Also the quality of the cable matters a lot.
In the same way, a battery/power bank with higher mAh values will last longer than a battery with lower mAh values. That’s the higher the mAh, the longer it lasts.
Theoretically , in order to determine the number of times a power bank can recharge a phone’s battery, it all depends on both the phone’s battery capacity and the power bank capacity. If you a power bank of 30,000mAh which will be used to charge a battery of 3000mAh, the number of times the power bank can charge the battery will be 10 times (power bank mAh value divided by battery mAh value).
Practically, the power bank will not charge your phone up to 10 times because of energy loss through heat and other factors.
So the higher the mAh value of the power bank, the better in terms of the number of times you can use it before it is exhausted.
Also note, the higher mAh value of the power bank, the bigger and heavier it will be.
Unfortunately the value of mAh is not the whole story. If mAh is all that matters, that means you can use a laptop’s power bank to charge a phone’s battery. Another essential factor to consider is the voltage. The standard voltage of a phone’s battery is 3.7V and the standard output voltage of every phone’s power bank is 5V. 3.7V is just a nominal, average voltage of a li-ion battery, the actual voltage of a fully charged battery is 4.2V. As the battery is used, the voltage will drop lower and lower until the minimum which is around 3.0V.
Why is the output voltage of a power bank 5V and not 3.7V you may ask. If the output voltage of the power bank is the same with the value of phone’s battery. Then your phone’s battery will be charging the power bank when the voltage level of your phone’s battery is greater than that of your power bank.
Below is a table in order to understand this concept.
3V – 0%
3.12V – 10%
3.24V – 20%
3.36V – 30%
3.48V – 40%
3.60V – 50%
3.72V – 60%
3.84V – 70%
3.96V – 80%
4.08V – 90%
4.20V – 100%
Now imagine your power bank has only 10% left and your phone is 40% charged, if you connect your power bank to your phone, then your phone will be charging your power bank because of the voltage difference(3.12V vs 3.48V).
Here’s a summary of How To Charge Your Phone Fast
1. Switch off your phone when charging.
2. Use quality cable.
3. Switch to Flight mode
4. Use charger with higher A or mA.
What’s more, let your thoughts to be known…comment.