u/Kooky-Minimum-2009

Hi! I have a Miyoo Mini Plus for about 2 years. I love this device, but I think mine might be defective cause it's battery lasts for about 1 and a half hour before getting too low and I have to charge. It's always been like that, even with different SD cards and OnionOS versions. Is it cooked?

Edit: I usually play with screen brightness on 9, wifi off and max sound volume.