Thinkpads Forum

Since 5hrs, my Thinkpad Yoga gen1 does not charge when plugged into the wall. I checked carefully that the charger is indeed plugged in and that there is proper powers upply in the wall.

* Tried the reset button on bottom of laptop.

* Will try unplug battery for some seconds, as advertised elsewhere.

In the worst case, some electronics are fried - am in India where voltage anomalies do happen. I suspected there was one, there is over-voltage protection in the house, and the aircondition was fine.

When I touched the laptop's magnesium chassi on the side however, I felt rather strong electricity, but it seems that I do all the time also now when it's plugged in to the wall, so I guess the charger does work.

Do you have any thoughts/suggestions?

It's possible that the charger is faulty. Try a different adapter.

bwsb wrote:When I touched the laptop's magnesium chassi on the side however, I felt rather strong electricity, but it seems that I do all the time also now when it's plugged in to the wall, so I guess the charger does work.

To me, that sounds like a typical condition where the AC outlet ground connection is not wired correctly. Either that, or the charger itself has a problem. I would usually recommend reversing / flipping the plug around 180 degrees and see if the electrical tingling goes away but depending on the outlet you have and/or if you are using any plug adapter, you may not be able to do that given your current location.

I would also attempt to measure the voltage coming out of the AC adapter and verify it is within operational limits (i.e., 20VDC).

ref: http://www.worldstandards.eu/electricit ... d-sockets/
ref: http://en.wikipedia.org/wiki/Mains_elec ... by_country

rkawakami, thanks.

Apparently the AC adapter was fried, from voltage fluctuations in this Indian power system.

So apparently you always need an external voltage stabilizer when you're in the third world.

My charger was fried, the solution was to get a new one, and get this voltage protector: http://forum.thinkpads.com/viewtopic.ph ... 2&p=754912

Completely awesome. No issues after I got it.