new battery drained from 41,040 mWh to 31,692 mWh what's the problem

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 laptop it was really fast and smelled like new laptop and all my microsoft laptop was loged out and i belive he changed my battery. so this was around september and october soon after just two months my laptop suddenly started shutting down while i was using it. When i tried to turn it back on it never worked so i assumed it was low battery but it never showed low battery indication. this repeated many times so i started to think that this is not normal so when my laptop again turned off i plued it in and turned on immidiatly the batttery level showed 20% and with time it only got worse laptop shutting down at 30% and never turns on unless i charge it. I used chatgpt for help and with it i checked my battery health and i shared that with got and it said my battery capasity have drained...said its because of over chargeing and i did used to over charge this is december 2024 my laptop battey got worse and turning off at 60%...and i didn;t use it for a 2 weeks i wasn't home when i came back the battery have bulged and slightly broke my frame...i told gpt that i have recently changed the battery just two months ago and it said its probably a cheep battery a duplicate one. So this time i gave my laptop to legit hp service center and changed my battery this was january 2024. And they said its because of overcharging and adviced me to never overcharge and fully uses till laptop runs out of battery. From that day i was extremely causious about it and mindfull to never ever over charge my laptop. My laptop was at its peak so i wanted to play games in it i never expected it to run any games causse my laptop is old. but still i wanted to try it and downloaded games and it was running but i was conserned about playing games pluged in so again i reached out to gpt for advice and it told its ok too and i put my performance mod in best performance when pluged in and battery saving in battery. so i started playing games last month. I still was scared to play games after fully charging still i am so i usually used my laptop and only played games when its on 30 to 60% charge and i usually stop while it reached full not cause it got full but i played enough for that day. so last day i was watching a movie in my laptop and it turned off i though the battery problem is here again so i pluged it in and turned on again it was on 7% charge and i used gpt to check my battery health and it said battery capacity have drained from its41,040 mWh and it went down to 31,692 mWh.

am consrned again am still in school i dont have money and i dont want to use my parents money again to fix my laptop i just changed the battey in january.
i dont understand why it happened is it because of my gaming...soon after i gave this to gpt it said to change the power settting to baisc and i did it.


i would like to talk to a laptop expert and understand why my battery draind that much...if its normal...and if not should i stop gaming...and why it happened ....i look forward to get an answer for these questions

 

Hardly an expert, but quite a bit of experience with various Laptops and battery issues.
It's not normal, you should try going back to the HP service centre that changed the battery and give them the history. It could be that the earlier guy overclocked your Laptop to speed it up, but overdid it. That can damage battery life or other components which might be causing the problem. It may also be helpful to check yourself beforehand if the Laptop runs continuously or still cuts out while running on the mains adapter. Processor overheating could be the reason for it cutting out and would happen on mains power also.
Gaming will certainly drain the battery faster, and produce more heat, but I think it unlikely to cause the problem you describe if you have been cautious.
Pete

 

It could be that the earlier guy overclocked your Laptop to speed it up, but overdid it.