The problem you describe is a battery with less then 12.3 volts.
the CCA will be confirmed with a battery load test.
We’ve seen new batteries with this same issue, I’ve had a 3 month old battery with a dead cell.

 

FWIW; the theft deterrent light on the dash will come on when the battery gets below a certain point.

The theft deterrent is reset EVERY time you turn the correct key in the ignition. If you are using a new key that was not matched to the car you have that problem. Whoever got you convinced that anti-theft systems break and cause problems is stuck in last century, they don't do that anymore.

 

The place I went to said my battery is on its last life. I got it recharged and my car still does nothing. So if I replace the battery you think it'll start? I dont know much about cars I thought as long as the battery have a little life it should do something

 

The computers need at least 9 volts to wake up, the starter needs at least 12.4 volts to crank dash lights only need 6Volts, they are LEDs.

At 75F 12.2 volts is 55% discharged (dead battery).

 

Recharging a battery that is at the end of it's life will likely just result in a battery that may actually be up to the correct voltage, but will not have the capacity of amps (the power in the battery) to actually turn the engine over. Yeah the radio, interior lights and dash lights might come on (like Don says) - but it won't have the power to actually turn the engine over.

Just get a new battery.

 

Yes, you need a new battery.