Hyundai made a grand return to the Thai market with the award-winning IONIQ EV family. This Korean EV brand stands out for its 800V technology and V2L (Vehicle-to-Load) feature capable of powering external devices.

But no matter how advanced the tech, the “12V Battery” remains a point requiring care, especially in cars with complex electrical systems like IONIQ that need constant power for sensors and battery cooling. EV Phuket is ready to service all Hyundai models, both EVs and popular vans like Staria/H1.

Hyundai Models We Service

1. Hyundai IONIQ 5 / IONIQ 6

Futuristic EVs. Uses a large DIN standard (recessed terminal) battery to support V2L and dual-screen infotainment.

2. Hyundai Staria

The space-ship MPV favorite of Phuket hotels and tours. Uses a very large battery (DIN100) to support electric sliding doors and roof AC.

3. Hyundai H1 (Grand Starex)

The legendary van still abundant in Phuket. Batteries are easy to find, but you must choose one with very high CCA to start the 2.5-liter diesel engine easily.

Understanding the Hyundai Battery System (IONIQ)

Special features of IONIQ affecting the 12V battery:

V2L (Vehicle-to-Load): Feature turning the car into a giant Power Bank, supplying 220V AC to appliances (like coffee makers while camping). Using this mode works the inverter hard and relies on 12V power to control the system.
ICCU (Integrated Charging Control Unit): The charging control unit reported to have issues in some lots, which might result in the 12V battery not being recharged until dead.
Cooling System: IONIQ 5 has an Active Air Flap on the front grille that opens/closes automatically, using a 12V electric motor.

How to Extend Your Hyundai Battery Life

Always Update Software: Hyundai releases updates to fix ICCU and 12V management issues. Visit the center to check for the latest version.
Watch Sliding Doors (Staria): For Staria vans, playing with electric sliding doors while the engine is off (e.g., waiting for customers at the airport) drains the 12V battery empty in hours.
Check via Bluelink: Monitor battery voltage via the Bluelink app (if available). If voltage is below 12.0V, drive to charge or change the battery immediately.

Common Signs of Battery Failure in Hyundai IONIQ / Staria

IONIQ 5 Won’t Start: Screens completely black, Smart Key doesn’t work (need to use physical key).
Staria Slow Doors: Electric doors open/close sluggishly or give long warning beeps.
Flickering Headlights: LED headlights flicker when the AC compressor kicks in.
“Stop Vehicle and Check Power Supply”: A critical warning indicating Low Voltage converter issues or degraded 12V battery.

Mobile Hyundai Battery Replacement Service in Phuket

EV Phuket cares for your Korean car with international standards:

Giant Battery Stock: We stock DIN100 (LN5) batteries for Staria and H1 at all times. No waiting for orders. Ready to change instantly.
Direct Fit EV Battery: For IONIQ, we have DIN60 / DIN75 recessed terminal batteries, factory spec, or upgrades to AGM to better support V2L.
Complete Tools: Long socket wrenches to remove battery locks in deep recesses of H1 and Staria. We have them all. No prying or damaging the car.
Hotel Service: VIP van picked up guests but won’t start? Call us. We change it quietly behind the parking lot without disturbing your guests.

FAQ: Hyundai Battery Replacement

Q: Why did my Hyundai IONIQ 5 12V battery die? A: Mostly due to old ICCU software versions or leaving Utility Camp mode on until forgotten. If it’s a brand new car, recommend checking ICCU at the center. If used for nearly 2 years, likely just age degradation.

Q: How much is a Staria van battery? A: Staria uses a very large battery (DIN100). Prices start around 3,500 - 4,500 THB depending on brand (3K, Puma, Varta). We recommend models with CCA 800+.

Q: Do you have AGM batteries for Hyundai? A: Yes. If you use IONIQ 5 and V2L frequently, we recommend switching to Varta AGM. More stable power, more durable, and safer than standard wet batteries.

Q: Do I get free slide truck service from Hyundai? A: Hyundai offers free 24/7 Roadside Assistance for new cars. But… slide trucks might take 1-2 hours. If in a rush, or if it’s just a dead battery requiring a swap, calling EV Phuket is faster. Arriving in 30 mins.

Hyundai Battery Service