Question Laptop turns off suddenly

Feb 19, 2019
1
0
10
0
I have a Lenovo G40-70, i5 4th gen, 12 GB RAM. After 3 months of use, it started turning off while on battery with no warning notification or sound. I can't even use it for 20 minutes max. The battery might read 50%-90% and suddenly is drained to 0% and turns off.
I don't think it shuts down, because when I plug in the charger and turn it on, the windows I opened before it turned off are always intact. The fan seems to be working fine too and I checked the charger with another laptop and it doesn't have a problem either.
Also, when I connect the charger and then it on, the battery is always about 20%-40% full. It only takes up to 30 minutes to fully charge it and when I lower the brightness, it only takes a few seconds.
I checked to see how the power changes(with low brightness) when I work with Unity and it read as follows;
100% - 6hr+
99% - 3hr+
98% - 5hr+
94% - 6hr+
And poof, it goes off.
Haven't checked the thermal paste yet, and it would be really embarrassing if it's only an issue with the battery ?.

Edit: even without using any app, it turns off at 89%. I don't have many background apps running either.
 
Last edited:
It is likely the battery. They tend to act rather odd when they are going bad. Charging way faster than normal, and then dying when they say they still have a high percentage left.

This happens because when they start to hold less and less of a charge, they give false readings as if the parts that no longer hold a charge are still good. So, since you are actually accessing and using less of the capacity of the battery, it charges the smaller amount way faster. Personally I think they need to make software read them better and give correct data. :)
 
Reactions: Somosaphiens
Thread starter Similar threads Forum Replies Date
R Laptop Tech Support 3
S Laptop Tech Support 13
C Laptop Tech Support 1
M Laptop Tech Support 1
N Laptop Tech Support 3
N Laptop Tech Support 1
L Laptop Tech Support 1
R Laptop Tech Support 4
A Laptop Tech Support 1
V Laptop Tech Support 6
N Laptop Tech Support 7
L Laptop Tech Support 1
C Laptop Tech Support 1
R Laptop Tech Support 4
H Laptop Tech Support 3
T Laptop Tech Support 1
T Laptop Tech Support 1
P Laptop Tech Support 1
S Laptop Tech Support 1
M Laptop Tech Support 1
Similar threads
Question laptop suddenly shut down and wont turn on
Solved! Laptop randomly turning off
How do I fix my acer laptop suddenly turn off after I turn it on?
Solved! Lenovo laptop shut down suddenly can’t turn it back on
Solved! a remedy for my lenevo laptop that suddenly turning off
Solved! I use acer swift 3 window 10. I tried to turn on the laptop, the screen showed the acer logo but suddenly the it turned black.
Solved! Laptop suddenly restarted but won't turn on and won't even be forced shutdown
my laptop automatic turn off suddenly
A part of my laptop screen suddenly turned white. What.can I do?
Acer Laptop Suddenly Shutsdown with a Clicking Sound after Turning On
my laptops keyboard has stopped responding. i didnt clean it or anything, it just wasnt working suddenly when i turned it on.
my laptop is only 18 mnths old. surely doesnt need new batter yet? turns off suddenly after an hour of use even though battery
My laptop suddenly turned off and won't turn back on?
I put a screw driver into the usb port of my Asus laptopand suddenly my laptop turned off.when I try to turn it on the led ju
HP X 360 Convertible 11-ab011 Laptop suddenly turns itself off and I have to press the power button to get it to "re-start" wh
Laptop suddenly turned off and wont turn back on
Laptop suddenly turning off when leaning on keyboard area. HELP!!!
Laptop all LEDs turn on suddenly when plugged but won't boot up
I switched my USB to laptop and suddenly it shut off and is not turning on now. What shall I do
I m watching movie in my laptop, my laptop suddenly turned off , Nw its was not working

ASK THE COMMUNITY