The battery figures before charging should be more than enough to start a car. I find that a CCA of as low as around 160 will still start most 4 cyl cars in average temperature environment. The only thing I think is the final voltage after charging where it should have been around 13 volts unless you let it stand for a day or 2. My guess is your using an electronic battery tester not a load tester which measures the batteries internal resistance to make a decision on good or bad rather than a true reading of just how good it really is under load like cranking.

 

yes ,i am using a cheap tester (btp-60 pro) from amazon
i will let trickle charge for a day and let it go for awhile...car has mfg date of 4/24 so still have warranty on it,thanks for the good information

 

A trickle charger will only bring it back up to normal voltage, but it does not affect the load variant a battery must have. Continued use of a battery that is a state of failing can and often effects other electronics and electrical parts on your vehicle. I strongly suggest that you go to Mazda have them test your battery and if need be, get it replaced.

 

ok,didn't know that-i may just do it myself even though it's under warranty-any concerns with going to a group 24f ? thank you

 

I did the same thing on my Mazda. I did get a voucher for the labor of .25 hours at warranty service rate. . LOL
Going to a different battery size and power as long as the power rating is at least the minimum required for your Mazda will not affect the Warranty. And it really is not a bad idea for you to DIY!
Just make sure you follow the exact battery disconnect and reconnect steps to the letter!!!!! If you don't know what they are go read the proper procedure.