Lenovo Thinkpad T420

[Buccaneers-1]

I Have a new battery and a new charger, hey have been working fine the last 30 days. It won't charge i get an error say battery getting low plug in pc.i can remove the battery and it runs on the charger and then it says no battery detected and i get a beep every 4 seconds. I'm running Windows !0.Thank you hope someone can help.

 

[webworkings]

Well if it is an aftermarket charger and/or battery, that could be your problem. They are pretty much hit or miss on if they will work correctly or last. If they are still under warranty, I would return them and get new ones. If possible get OEM ones instead. There are less problems in that case.