Gaming laptop switches quickly between charging and battery power
Gaming laptop switches quickly between charging and battery power
I own a friend's Asus G751J, a fairly unused hand-me-down from an older woman who didn’t need it. I’m not sure if it was refurbished since it used a Dell charger. The main issue is that the display constantly toggles between charging and battery status while connected, maintaining a steady rhythm most of the time. Another peculiar observation is that it functions perfectly when connecting to nearby Wi-Fi networks, except for the one at my home, where the signal appears normal on all other devices. Standard solutions haven’t resolved the problem, so I switched to using an Ethernet cable.
Regarding the battery concern, I attempted a universal charger from Best Buy but it didn’t help. Later, I bought a replacement battery from Amazon, which also failed. When testing with PowerShell or CMD, the system reported low memory despite having 12GB of RAM. Using a multimeter, I checked the charger and the red wires linking the motherboard to the battery—three of them were functioning correctly. However, I couldn’t verify the charging port directly because I couldn’t see the connections inside the motherboard. Besides, I ran a system file checker that repaired some corrupted files and temporarily stopped the charging/not-charging alert, though it resumed afterward (unless it was just a coincidence). I also tried deleting the battery driver, considering a BIOS update, but the laptop would shut down unexpectedly with an incorrect battery reading—showing 60% while failing to start unless plugged in, and sometimes cutting power when connected.
I can’t try a startup fix either, as it requires a password and seems impractical. Should I assume this is definitely a hardware issue, and if so, is it worth trying to fix with my limited experience? I considered the possibility of a virus but didn’t think much of it.
Sorry, I might have posted this in the wrong section.
The power supply details are available in the technical specifications for your particular laptop model. This information was gathered from an unofficial manual source for the G751JT;
Power adapter details:
•Input voltage: 100-240Vac
•Input frequency: 50-60Hz
•Rating output current: 230W (11.8A)
•Rating output voltage: 19.5V
Keep in mind that using insufficient power for extended periods might affect the laptop's power delivery. If you intend to buy one, choose a reputable seller with a solid return policy, as these products can seem reasonably priced at first glance.
Wow, now it's clear the charger I'm using is roughly four times weaker than intended. I didn't realize this before. I'll keep the spare battery handy and try an Amazon charger. A price near $100 seems unreasonable, but it's what it is. If things change, I'll let you know. Thanks.