I did a test on mine today with a Topdon battery tester. My car is a diesel vRS 2.5 years old and 75,000 miles.

The test result ( attached) doesn’t look promising .

Do i have symptoms? Kind of. Mostly the odd low voltage code but it seems to crank strong enough ( even on a frosty morning) and the start stop works flawlessly. I was hoovering the car out the other day with doors open for about 20 mins and the crank did seem a little low afterwards with a tyre pressure monitor fault briefly flashing up on the screen.

Should it be replaced? 2.5 years doesn’t seem long but my car probably has more extreme usage than most.

Anyone else changed your batteries prematurely?

Buy yourself a CTEK MXS 5.0 Battery Charger

Run it on the Recond option.

Brought my battery back to life after suffering similar issues to your own, and it's worked flawlessly since

38% health while SOC at >95% is pretty low and tends to suggest your battery is suffering from hard sulphation - which will probably not be fully reversible.

Internal res looks OK.

A recovery charge programme may help, but approaching winter could well finish it off.

1 hour ago, scotthugh3s said:

Buy yourself a CTEK MXS 5.0 Battery Charger

Run it on the Recond option.

Brought my battery back to life after suffering similar issues to your own, and it's worked flawlessly since

I have used a smart charger a few times. Didn’t make any difference, offen says the battery is full after only 30-40 mins.

11 minutes ago, Warrior193 said:

38% health while SOC at >95% is pretty low and tends to suggest your battery is suffering from hard sulphation - which will probably not be fully reversible.

Internal res looks OK.

A recovery charge programme may help, but approaching winter could well finish it off.

Resistance not a little high? For comparison i tested the same battery in a friends car but a year older. His read over 600 amps and a resistance of 3.7 millohms.

From memory, anything below 8 mOhms is ok.

5 hours ago, Micky 32 said:

I have used a smart charger a few times. Didn’t make any difference, offen says the battery is full after only 30-40 mins.

The CTEK worked wonders for me. The Recond mode gave my battery a completely new lease of life