Question Laptop charges sometimes , sometimes not

Jun 8, 2019
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I have a Lenovo g50-45 laptop . facing a charging issue, battery hesitates to charge sometimes. And it shows a veraity of messages like

plugged in 0 minutes remaining(when battery is on 7%),
plugged in 1 minute remaining,
plugged in discharging
Plugged in(blank estimated time)

Sometimes it starts to charge normally and shows correct estimated time. Most of the times it deacrese it's charge even it is plugged in. Intially I suspect it's a charger issue and brought a new one because battery still shows a very very good battery backup off 3 hours if it is changed to a 100%.

I already did many methods of troubleshooting like .
uninstall /reinstall acpi drivers, Lenovo power management drivers, Battery gauge reset in Lenovo utility, Reinstall windows tried different versions , switched to other os like Ubuntu , updated drivers and softwares, flashing bios and updating bios.

My laptop don't even turn if battery is low. It can only work with battery power even AC adapter is plugged in. I don't know this is just my case or the model g50-45 is designed like this.


Do you recommend a battery change? My Battery still showing a very good battery backup makes me think issue is related to something else.

What are the other possible causes of this issue?
 
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