Batter life

i'll start with telling my laptop specifications HP Laptop 14q-cs0xxx intel i3-7020u CPU its a low end laptop which was for around 300 dollers. well to avoid confusion i'll breefly tell my story my laptop was slow so i gave it to a technecian and he did something idk what but when i got my...

My laptop is HP Pavilion au620tx and it is not charging over 13 and sometime 16 percent. I tried updating microsoft ac adapter and microsoft ACPI. I reinstall both the drivers but nothing happens. So i tried calibrating the battery using F2 and it says AC adapter required to calibrate the...

I used my phones 1A (ampere) charger for my mother's Intex aqua 3g pro phone and it charged the phone faster than usual. But after using that, the battery started to drain fast like 1% for every 3 minutes. And if internet is on then it discharges 1%for 1 min. Can anyone tell me the problem...