Kia EV9's 12-Volt Battery Issues
The Kia EV9 has been experiencing issues with its 12-volt battery, with one owner, Brian Jones, having his battery die for the third time in six months.
Despite charging to 100% the night before, the battery died while 200 miles from home, leaving the owner stranded.
Charging Logic Flaw
The EV9's charging logic has been exposed as flawed, as it does not charge the 12V battery to a full 14.4V when plugged into a Level 2 charger.
The transition to electric vehicles has introduced new categories of technical challenges that differ significantly from traditional automotive problems.
Persistent 12-Volt Battery Failures
The persistent failure of 12-volt auxiliary batteries in electric vehicles, particularly those built on Hyundai Motor Group's E-GMP platform, has been a frustrating issue for owners.
- These failures can leave drivers stranded with fully charged main batteries but completely inoperable vehicles.
- The issue creates a paradox where the most advanced automotive technology is defeated by conventional 12-volt electrical systems.
Brian Jones's experience with his Kia EV9 represents a particularly egregious example of this ongoing problem.
Author's summary: Kia EV9's 12V battery dies repeatedly.