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Lenovo y550 laptop, battery shows fully charged, everytime i un-plug the charger,system shuts down, and won't start back up until i plug it into an outlet
Quite simply, the battery is dead. What is happening, is that the battery is charging, but the cells cannot retain the charge and it drains straight away. You need a new battery
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The CMOS battery on the Y550 is considered to be non-replaceable by Lenovo. It is soldered directly to the motherboard itself. You can check out this youtube video on the disassembly of the Y550. At the 14:22 minute mark on the video you can see where this battery is. At the top right of the video you will see a big green INTEL chip (upside down). To the right of the bottom of the Intel chip, you will see a round blue component. This is the battery.
If you were handy with a soldering iron, you could un-solder and replace this battery, but the average consumer would not be able to replace it. Lenovo will most likely require you to purchase a new motherboard.
If the laptop battery is more than 3 - 4 years old then the battery could be worn out. Rechargeable batteries have a finite number of charge and discharge cycles and will lose their charge capacity over time, i.e. won't charge to 100% and gradually the charge reduces until the battery won't charge up at all. OR The battery shows a 100% charge but when the adapter is disconnected the battery drops off to zero capacity in a very short time. If the battery drops to an unacceptable charge level then the battery needs to be replaced.
If thelaptop battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.
If thelaptop battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.
I see you are having issues with you G550 charging.
You mentioned that the light on the charger is lit up but then it suddenly switches Off, and you also mentioned that the charge still has a light but the power is somewhat low despite of a fully lit up charger Light.
Have you tried draining the power from the system?
Remove the battery and the Charger or AC Adapter as well call it from the G550 then press and hold down the power button for 10-15 seconds to drain power from the system motherboard.
Once drained connect the AC adapter but do not connect the battery yet, then turn the Laptop ON to see if the system will power ON using the AC adapter/Charger if it powers up then there is no problem with the AC adapter/charger.
After testing the AC adapter if it is working power down the Laptop doing a normal shut down.
Once shut down or turned Off insert the Battery back in the Laptop then turn the Laptop ON using the battery only without the AC adapter/charger see if the system will turn ON using the Battery only.
If the Laptop powers On using the battery alone with out the AC adapter then the battery is most likely working as well on the issue.
Now power down the Laptop then connect the AC adapter to the Laptop with the Battery in the Laptop as well then turn the system ON again see if the problem will Occur again having the battery and the AC adapter/charger if the Problem happens with both Battery and AC adapter on the Laptop then the problem is the Motherboard, most probably the motherboard is having issues relaying power from the AC adapter to the battery and may be sent to the Depot for repairs.
I suggest that you call Lenovo for further information about your system, if you still have warranty and is still in the one year period then your system will be covered for any repairs needed - you can call @ 1 877 453 6686 for troubleshooting, you will be asked for a serial number Located underneath the Laptop on a small white sticker that states s/n meaning serial number.
Shows a clear indication of the battery to be faulty. So in the first place remove the battery and checck the voltage, now keeping the battery off the laptop, plug the adaptor to the mains, Now checck the voltage in the battery terminals which is in the battery compartment. If voltage is present then the battery is bad as it is not charging.
However if there is no voltage then the main board has a fault in the charging section which must be looked into.
your having an overheating problem its either your processor or your chipset inside the laptop..let it rest for a while put a cooler pad under your laptop while using it to prevent further damage..i suggest you backup all your data also before it crashes permanently..also bring it to your nearest mac service center...hope this helps
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