Does monitoring affect my battery warranty?

Yes, and in the direction most people do not expect. AusNet’s asset strategy notes that the absence of monitoring “may void the DC cell warranty as the manufacturer requires proof that the DC cell was operated in a controlled regime.” Monitoring data functions as the evidence file for a warranty claim. Related point worth checking on your charger fleet: AusNet reports around half of its chargers have temperature control functionality, while the current standard requires temperature-compensated charging, a charger without it may itself be the reason a claim is declined.