Does wrong charger ruin your phone battery

By June 24, 2019

Gadgets these days have so many different functions that they’ve become everything a person might need all stuffed into a palm-sized device, but one big drawback of this technological advancement is that batteries can’t keep up with the workload and die too quickly. While mobile producers continue to improve on batteries to make them charge faster and last longer, people still keep making common mistakes when it comes to charging their devices and ruin the battery instead, like using a wrong charger to charge phones, does it really ruin your phone battery?

Not everyone is clear about the meaning of the charging standard, how to make sure if the charger is compatible except the original one? First check the output information written on your charger, generally it contains all the charging standard it accepts, like 5V 1A, 5V 2.1A etc. Nowadays, the fast charging technologies like Qualcomm Quick Charge , Samsung Adaptive Fast Charge allow higher charging throughput like 5V 3A, 9V 2A, not to mention Huawei and OnePlus have developed extraordinary 40W+ fast charging standard. 

samsung-adaptive-fast-charger-specs

What if I use a “fast” charger to charge a “slow” phone?

Let’s assume you have a 5V 1A charger shipped in the box — an iPhone charger, it’s pretty slow since most chargers on the market are faster than it. It doesn’t mean that the highest charging power my iPhone can accept is only 5W, in fact when I use a 5V 2.1A charger or even a 9V 2A charger the charging speed is faster, and I can say it’s safe to do that. Why? Basically the internal circuit built in the modern smartphones are controlled by smart chips, they don’t care whether the external power source is any particular brand or model, as long as the voltage is right, and they control the charging rate and cuts off the charging when the battery is full charged. Therefore, they will allow what they can handle, which means if your iPhone is a pretty new-generation and it supports fast charging protocol like PD charging standard, the charging speed increases when you use a “faster” charger. If it’s an old iPhone there’s no worries either, it will be charged at the normal speed it was designed for, just keep in mind that the “faster” charger you use must be an branded and reliable one.

EasyAcc-48W-USB-C-wall-charger

What if I use a “slow” charger to charge a “fast” phone?

There’s no problem to apply a “slow” charger to charge a “fast” phone, but the charging speed will be limited by the charger, you’re going to have longer than normal charging time. Generally speaking, it’s not recommended to do this since it lowers the charging efficiency and might affect the battery life in a negative way — the charging input might even be less than the battery drop if you are using the phone while charging it. 

 

 

 

 

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