I just replaced the battery in my Lenovo K6 Power. Now my new battery isn't charging upto 100 percent. Once it reaches anywhere between 95 to 98 percent, the battery stops charging and the phone displays the "Charge complete" message. The battery is also loosing its charge much quicker than before. The tech who changed the battery has no clue how to fix it. He had told me to charge the phone after switching it off, which didn't help. He had also suggested that I take the phone back to factory settings which again wasn't able to fix the issue. I've tried changing it using a new charger and different sockets but nothing seems to work. Please suggest how can I fix the problem?