I recently bought new battery for my laptop (model G3-572) and It's a substitute. So in some games that are more demanding (but still good for my laptop) the battery after some time stops charging tho it says that it charges even on battery report and charging light starts blinking. It won't charge up and after some time battery will drop to 98-97% then to 96% and the I don't know if it will drop. When I unplug it and let it drop to 95-93% (this is new battery design capacity) it will charge up. Also on in game laptop performance is normal, on old battery problems that I describe here didn't show up.
If anyone knows how to fix it, please let me know.
[//Edited the content to add model name]