Kia EV9's 12-Volt Battery Issue
My Kia EV9's 12-Volt Battery Died For The Third Time In Six Months While We Were 200 Miles From Home, Despite Charging To 100% The Night Before.
The transition to electric vehicles has introduced new categories of technical challenges that differ significantly from traditional automotive problems. Among the most frustrating for owners has been the persistent failure of 12-volt auxiliary batteries in electric vehicles, particularly those built on Hyundai Motor Group's E-GMP platform.
Brian Jones's experience with his Kia EV9 represents a particularly egregious example of this ongoing problem, with three 12-volt battery failures in exactly six months of ownership.
Charging Logic Issue
Why does the EV9 not charge its 12V battery to a full 14.4V when plugged into a Level 2 charger? This owner's ordeal exposes Kia's flawed charging logic and how the only long-term fix might be upgrading.
The most advanced automotive technology is defeated by conventional 12-volt electrical systems.
Author's summary: Kia EV9's battery issue persists.
- Persistent 12-volt auxiliary battery failures in electric vehicles
- Flawed charging logic in Kia EV9
- Need for upgrading as a long-term fix
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