Is the 12v battery covered under VWs 3 year warranty?

[Johntheo1]

VW Polo 65BHP Petrol 8 yrs 3 months original 59AH EFB Battery
Latest scan yesterday.
IDE01834 Battery voltage 12.081 V Engine OFF
IDE01836 Battery current -4.997 A
IDE01837 Temperature of battery sensor 16 °C
IDE01839 Battery charge level 73 %
IDE01841 Battery internal resistance 8.2 mOhm
IDE01842 Usable battery charge 21 Ah
IDE01843 Battery voltage at rest 12.4 V
IDE01948 Battery internal resistance not normed 7.6 mOhm
IDE07681-MAS06086 Battery total charging throughput-Total re-charge 3706.5 Ah
IDE07681-MAS06087 Battery total charging throughput-Entire energy throughput 3908.8 Ah

First Partial Scan taken when car was 2 yrs 8 months old.
IDE01834 Battery voltage 13.487 V Engine Idling
IDE01836 Battery current 2.639 A
IDE01837 Temperature of battery sensor 32 °C
IDE01838 Battery temperature 27 °C
IDE01839 Battery charge level 85 %
IDE01841 Battery internal resistance 6.6 mOhm
IDE01842 Usable battery charge 38 Ah

[Johntheo1]

Just for interest.

New 1.0L 95BHP TSI Polo battery readings just after driving ~ 10kms after delivery, "mileage" 18kms. Car behaving exactly like the 2019 one, start/stop enabled/ operates after exactly 0.5kms even after a cold (4C) start yesterday morning. Presume its the same 59AH EFB Battery, when I enterd Adaption mode, a message to the effect, "entering advanced diagnostics,open car hood", I didn't, in case it migh be logged that I was in adaption mode and might invalidate warrenty if battery packed up within 3 years and might be used as the dealer's excuse for not honouring it, even if unlikely.

It draws a fair bit more current than the 2019 one with ignition on, 7.2A vs ~ 4.8A, usable (new) battery charge is 30A, hopefully will at least rise to ~ 35AH when SOC rises to 85%, its presently charging at full charging voltage of 14.6/14.8V under all driving conditions.

New Polo
MAS16744-IDE01836 12-volt battery-Battery current -7.159 A

MAS16744-IDE01839 12-volt battery-Battery charge status 77 %

MAS16744-IDE01841 12-volt battery-Battery internal resistance 6.8 mOhm

MAS16744-IDE01842 12-volt battery-Usable battery charge 30 Ah

MAS16744-IDE01948 12-volt battery-Battery internal resistance not normed 6.4 mOhm

MAS16745-IDE01843 Quiescent current management-Battery voltage at rest 12.5 V

And, again.
2019 Polo readings first taken when car was 2.7 years old

IDE01839 Battery charge level 85 %

IDE01841 Battery internal resistance 6.6 mOhm

IDE01842 Usable battery charge 38 Ah

[Johntheo1]

Further to the above, the battery SOC dropped to 64%, the BMS on this car works (fault??) completely different to the 2019 model, the 2019 model NEVER lets the charging voltage drop below 13.4/13.6V (battery NEVER supplying any electrical load once engine is running, and charging at a minimum 1.0/2.0A) and at 14.8V ish always continuously on the overrun, this car often goes as low as 12.0V so the complete electrical load is being provided by the battery for minutes, it does rise then to 12.8/13.4V, it does not run continuously at 14.8V on the overrun.
I trickle charged it for 16 hours with a 5A ULGD smart charger, it charged continuously at 0.81/0.85A and fell to 0.17A after 16 hours, at which point I discontinued charging, SOC then 86%.
I will continue to monitor it via my DVM.

VCDS
IDE00019 Voltage terminal 30 12.5 V
MAS16744-IDE01836 12-volt battery-Battery current -7.206 A
MAS16744-IDE01837 12-volt battery-Temperature of battery sensor 20 °C
MAS16744-IDE01839 12-volt battery-Battery charge status 86 %
MAS16744-IDE01841 12-volt battery-Battery internal resistance 7.2 mOhm
MAS16744-IDE01842 12-volt battery-Usable battery charge 33 Ah
MAS16745-IDE01843 Quiescent current management-Battery voltage at rest 12.6 V
MAS16744-MAS22232 12-volt battery-Battery aging: charge-related 92 %