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A power bank is essentially a portable charger. Power banks are most commonly used to charge cell phones but are often also used to charge laptops, speakers, and various other chargeable devices.
While it’s extremely rare for a power bank to damage the battery of a phone, there are some instances where it might happen. Here are some cases where you might be damaging your phone’s battery with your power bank.
The actual phone charger is in your phone. It doesn't matter where the power comes from, charging is always the same. Modern Lithium Ion and Lithium Poly cells do benefit from being "topped off". There is no lifetime penalty for charging before they're depleted. In fact, letting a battery get too low will reduce its lifetime. You count on the phone's software to prevent the most extreme form of this, but it's far better to charge before the battery dies.
Not if you follow these tips:
Firstly, make sure the capacity of your power bank is higher than the capacity of your device. For instance, if the capacity of your phone is 2500 mAh, then a power bank of capacity 2000 mAh won’t be able to charge it fully from 0-100% whereas a power bank of 10000 mAh capacity will be able to charge your phone from 0-100% a number of times.
Secondly, always consider the voltage rating of your phone while buying or using a power bank. Most smartphones today typically have the rate of 5V. Make sure your power bank also has the output rating of 5V. If it's lower than 4.2V, the power bank will drain your phone’s battery instead of charging it. And if it’s more than 5V, it will simply damage the circuit of your device by overloading.
Also consider the input rating of your device. Most devices have a rate of 1A or 2A at a voltage of 5V. If your phone draws a current of 1A at a voltage of 5V, then your power bank should have the same or slightly higher rating such as 5V/1A or 5V/2A. If it’s less than 1A, it would heat up your phone and may lead to explosion of the battery. Same goes for higher ratings. As long as you avoid the aforementioned situations, you have nothing to worry about while using a power bank.
While it’s extremely rare for a power bank to damage the battery of a phone, there are some instances where it might happen. Here are some cases where you might be damaging your phone’s battery with your power bank.
Will charging with a portable power bank damage cellphone's battery life?
No.The actual phone charger is in your phone. It doesn't matter where the power comes from, charging is always the same. Modern Lithium Ion and Lithium Poly cells do benefit from being "topped off". There is no lifetime penalty for charging before they're depleted. In fact, letting a battery get too low will reduce its lifetime. You count on the phone's software to prevent the most extreme form of this, but it's far better to charge before the battery dies.
Firstly, make sure the capacity of your power bank is higher than the capacity of your device. For instance, if the capacity of your phone is 2500 mAh, then a power bank of capacity 2000 mAh won’t be able to charge it fully from 0-100% whereas a power bank of 10000 mAh capacity will be able to charge your phone from 0-100% a number of times.
Secondly, always consider the voltage rating of your phone while buying or using a power bank. Most smartphones today typically have the rate of 5V. Make sure your power bank also has the output rating of 5V. If it's lower than 4.2V, the power bank will drain your phone’s battery instead of charging it. And if it’s more than 5V, it will simply damage the circuit of your device by overloading.
Also consider the input rating of your device. Most devices have a rate of 1A or 2A at a voltage of 5V. If your phone draws a current of 1A at a voltage of 5V, then your power bank should have the same or slightly higher rating such as 5V/1A or 5V/2A. If it’s less than 1A, it would heat up your phone and may lead to explosion of the battery. Same goes for higher ratings. As long as you avoid the aforementioned situations, you have nothing to worry about while using a power bank.
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Nice info. For battery life
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