My whole computer/battery is a month old. Thanks for the tips.
Your computer may be a month old, that is, it may; have been
in your hands for a month. That doesn't mean it hasn't been
on a shelf in a box for several years.
If the computer is a month old, then likely, the battery is
still under warranty, which is good for you.
Take the computer/battery back to where you got it, or
perhaps to a local licensed repair shop (many mfgs allow you
to go to your nearest outlet if it's under warranty), and
have the whole thing checked.
VERY likely, you'll get a brand new battery that has been
bench-checked, and you'll get apologies.
(since you just bought a computer, they are counting on you
to buy more stuff, so they will want to keep you happy)
(and be nice in here; most folks in here are nice and
helpful.)
Good luck!
Tallahassee