hello
i have 2 laptop both work fine when the adapter is pluged on when u disconnect adapter and run on. battery the machine takes too much time to boot,also. thr trackpad does get jittery and freezing but with adapter is works perfect. anyone face this problem or what i can i check as i have changed trackpad, smc chip, new hdd disconnected the wifi and camera cable
thanks

Good afternoon! Check the accumulator, sometimes happens because of the faulty battery the notebook brakes