help needed！T470s batteries %0 and but not charging

[vetra]

Recently got a T470s, found that both batteries are in %0 power but not charging. Tried many ways, include taking batteries down and charging from +,- connectors with 5V and 12V. None of them is working.

Aida64 report attached here. Anyone has any hints? Thanks!

--------[ Power Management ]--------------------------------------------------------------------------------------------

Power Management Properties:
Current Power Source AC Line
Battery Status 0 % (Low Level, Critical Level)
Full Battery Lifetime Unknown
Remaining Battery Lifetime Unknown

Battery Properties:
Device Name 00HW023
Manufacturer SMP
Serial Number 2921
Unique ID 2921SMP00HW023
Battery Type Rechargeable LiP
Designed Capacity 23540 mWh
Fully Charged Capacity 21450 mWh
Battery Voltage 2.933 V
Charge-Discharge Cycle Count 44
Wear Level 8 %
Power State AC Line, Critical

Battery Properties:
Device Name 01AV406
Manufacturer SMP
Serial Number 975
Unique ID 975SMP01AV406
Battery Type Rechargeable LiP
Designed Capacity 26060 mWh
Fully Charged Capacity 26060 mWh
Battery Voltage 3.838 V
Charge-Discharge Cycle Count 46
Wear Level 0 %
Power State AC Line, Critical