12-08-2016 05:26 AM
I have a Lenovo G505s (amd). Without battery works fine but with battery is cuts off aster 3sec. Doesn't matter with charger or not. I try put new battery but nothing changes. I suppose problem is in motherboard. If somebody can help fix it I'll be really happy. I can do soldering and I have tools for repair motherboards.
12-08-2016 08:17 PM
Hi AleksMp3 ,
Welcome to the Community Forums.
Usual for this issue ,the hardware guideline for power checkout on battery integrity page 22 is a good start.
In our case , even a new battery fails so we would expect same battery works on another same model isolating issue with the board.
Battery indicators (page 31) should go from solid amber to blinking to white as it is connected with the ac adapter without turning on the laptop for 2-3 hours. If not then as described with the manual would need a systemboard replacement .
Board level troubleshooting definitely requires advance electronics skill and further challenge is that OEM motherboard schematic diagrams are most often confidential proprietorship of OEM's (highlighted links only as examples).
Service centers may have a creative way for board maping that may help and likewise a good research with your motherboard are described in parts look up for looking for a documented schematics.
Hope this help answer your query and at least point you to a better direction to proceed.
Update us what works best for you.