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Battery repair refers to the general term for repairing batteries with reduced performance or failure by physical or chemical means. Through repair, the capacity of the battery can be restored, the service life of the battery can be prolonged, and various performances of the battery can be improved.

There are 10 tips about how to buy power banks,let's have a look.

Power Bank is the foremost need for us in the today’s world. It happens to all of us- whether we are in a metro or outside our homes, every data we need are in our smartphones. We need our smartphone to take a note, to chat with our friends, to email, send our message or to make a call. And at that moment only power banks helps to keep our mobile battery charged.Hence, it’s very important to take care of and maintain these devices. Below are some tips to maintain these power banks:

About phone batteries: What is mAh?

Sme tips for first time using your power bank

I don't know if you have ever had such an experience. I went out early in the morning with a cell phone that was just fully charged, and after using it for a while, I found that the power dropped drastically, and even a power trip occurred, and the power dropped from 80% to 30% is also common.

While modern Android batteries are increasingly high capacity, it can sometimes feel like your Android battery is draining faster than usual. This is especially true with older devices.

Here's a look at some of the reasons why your phone battery may be dying so fast and what to do to rectify it.

Can you damage a phone's battery by charging it too often, or for too long? We round up the best battery care tips to keep your smartphone battery healthy for as long as possible.