That voltage is too low. What you want to do is test the voltage while the
car is running. If the voltage is in the 14 volt range while running then
your battery is most likely shot. Load testing is a good way to test a
battery.

CaptainKrunch

"joe" <nospam@nospam.com> wrote in message
news:nospam-805195.18400421022004@netnews.comcast.net...
> How can I tell if I need a new battery?
>
> A friend of mine tested it and it measured 10.9 volts. Is that bad or
> good? It's a 2000 car with the original stock battery. Should I replace
> it now, or wait a year or two more? What are the signs/symptoms that I
> might need a new one or that it's getting bad?
>
> Thanks!