Hi,
The battery on my Lenovo laptop stopped getting charged. Since it's about 3 years old, I bought a new battery.
However, the new battery is not being charges either.
I checked the voltage between all the connectors going to the battery from the back of the laptop, and below is what I found (the connectors/poles with yellow colour are the ones being tested. When a pair is not indicated, the voltage was 0).
[-]_NNNDCN[+]: voltage drops by 0.01V every ~3 seconds. Currently at 1.96.
[-]_NNNDCN[+]: 3.16V, stable.
[-]_NNNDCN[+]: 3.26V, stable.
[-]_NNNDCN[+]: 3.26V, stable.
[-]_NNNDCN[+]: 2.02V, stable.
[-]_NNNDCN[+]: voltage rises by 0.01V every ~3 seconds.
[-]_NNNDCN[+]: voltage rises by 0.01V every ~3 seconds.
[-]_NNNDCN[+]: voltage rises by 0.01V every ~3 seconds.
[-]_NNNDCN[+]: voltage drops by 0.01V every ~3 seconds.
From the above I can see that when[-]_NNNDCN[+] are connected, I don't get the expected 9.6V to 12.6V.
Does the above indicate that the laptop's charging circuitry is faulty ?
Thanks,
Ron.
P.S.: Laptop is Lenovo 3000 Y200 (Disney). OS are Windows 7 and Ubuntu 10.10.
