Running the laptop for two hours while the battery is at 0% usage.
Running the laptop for two hours while the battery is at 0% usage.
I purchased a second-hand HP Pavilion 15 with serial number 15 cx0034nu. The battery was charged about five days ago according to the pictures, and it held its charge well. When I sent it for delivery, the temperature was below zero, around -5 or -7, and the device indicated a night-time condition. During testing at the delivery office, it wouldn’t power on when using battery power; it only turned on when connected to a wall socket. After bringing it home, I plugged it in and saw an error code 601. The issue seemed linked to ambient temperature affecting the battery or its age. We attempted all possible fixes—clearing static, resetting BIOS, removing and reinstalling the battery drivers—but nothing worked. The laptop remained at 0% charge even after unplugging, and in performance mode it stayed around that level when used.
From Google I see that the laptop uses a Li-Po chemistry battery. These offer high power density but are prone to harm. A Li-Po that has been discharged close to zero will likely lose its voltage and may get damaged. At this stage, the battery might be ruined or the charging circuit could fail due to voltage dropping below safe levels. Li-Po batteries are more prone to fire if mishandled compared to other lithium types. In such cases, treat the battery as dead—do not attempt to revive it.
I played a game with 0% charge without the charger, and it just shut off. After that, I turned it on and unplugged it again, which caused it to immediately turn off (standard dead battery situation). Then I powered it back on and kept it plugged in while playing. Now it charges up to 57% and is still functioning properly.