06-29-2017 10:43 AM
The battery on T420 was not charged, and I received a DOS message that the battery was extremely low before the system shutdown. I attached the power cord to the system and attempted to start the computer, but received the same message. So, I removed the battery and attempted to start the computer with just the power cord attached. Unfortunately, the computer did not start.
I know some systems require a battery inserted even if the power cord is attached. Is this the case with T420?
If not, is this a power cord issue, meaning that I have to purchase a new power cord?
Is this a power cord or battery issue, or worse, a power supply controller problem?
I am not a hardware guy. Any tips or suggestions appreciated. Thanks.
06-29-2017 12:14 PM
Welcome to the Community Forums.
The hardware manual does offer basic steps that you can try on this issue.
Page 37 for power check out guideline especially for checking the power adapter.
Operational charging won't be measurable at the moment since the AC charger may be at fault.
Hope this help answer your query.
Update us how it goes.
07-10-2017 01:54 PM
I was able to solve the problem. I borrowed a cord from my Bose Soft touch (the part that plugs into the electrical outlet socket (AC 110) and to the PC power cord. (the block portion with the two-pronged connection. Not a hardware guy as I mentioned, and I am not sure what the technical term is.)
With that, I was able to recharge the laptop. Battery is good. Went to the local Frye's Electronics and purchased the cord that I need for $9. I am back in business.
07-10-2017 02:04 PM
Good to know that you were able to follow isolation of the AC charger cord as the fault of failure and not the battery.
Please don't hesitate to visit our community at any time.