This video provides a comprehensive guide on how to replace the 12V battery in a Hyundai IONIQ 6 (e6), a common maintenance task for vehicles exceeding their 2-year battery warranty. The presenter details how to select a suitable replacement battery, emphasizing the YUASA HB13 B27 with a 5-year warranty. A crucial part of the process involves essential safety precautions, including unplugging all vehicle accessories and isolating the traction battery. The video then walks through the step-by-step procedure for removing the old battery and installing the new one, highlighting specific tools required and potential fitment challenges (like the need to remove the frunk for oversized replacement batteries, though this is generally avoidable). Finally, it addresses post-installation considerations, such as resetting drive modes and screen settings.
Summarizing the Hyundai IONIQ 6 12V Battery Replacement
0:06 – Introduction & Rationale: The video addresses the need to replace the 12V battery in Hyundai IONIQ 6 (e6) vehicles, as many are now over two years old and past their battery warranty, making them prone to issues.
0:31 – Selecting a Replacement Battery: The presenter recommends using the Halford's website (UK specific) to find compatible batteries. The YUASA HB13 B27 is specifically recommended due to its 5-year warranty and verified fit.
1:35 – Initial Safety Steps: Before starting, unplug any vehicle-to-load adapters or charging cables.
1:50 – Opening the Bonnet & Safety: Open the bonnet using the lever on the driver's side and the catch under the bonnet. Locate the 12V battery and the fuse box.
2:12 – Disconnecting Traction Battery: Crucially, disconnect the traction battery isolator (located in a fuse box near the 12V battery) by gently pulling it out. This prevents the ICCU from attempting to charge the 12V battery during replacement.
2:41 – Battery Removal - Initial Steps: Remove the 12V battery cover, then disconnect the negative terminal first, followed by the positive terminal (both require a 10mm socket).
3:01 – Required Tools: A 1/4-inch drive socket set with 10mm (for terminals) and 12mm (for clamp) sockets is needed, along with a ring spanner for leverage in tight spots.
3:47 – Removing Wires and Clamp: Unclip and move any wiring or covers obstructing the battery. Undo the battery clamp using a 12mm socket.
4:53 – Sliding Out the Battery: Once the clamp is undone, slide the battery towards the front of the car.
5:02 – Potential Frunk Removal: In the presenter's specific case, a wider warranty replacement battery necessitated removing the frunk (front trunk) for clearance. The recommended YUASA battery should fit without this extra step.
6:19 – Installing the New Battery: Place the new battery into position, ensuring it's pushed fully against the back and side.
6:28 – Securing the Battery: Re-tighten the battery clamp (12mm socket), ensuring the battery is secure and doesn't move.
7:13 – Reconnecting Terminals: Reconnect the positive terminal first, then the negative terminal (both 10mm socket). Do not overtighten.
9:07 – Reconnecting Traction Battery: Push the traction battery fuse/isolator back into its slot in the fuse box.
9:12 – Final Covers: Replace the fuse box cover and the 12V battery cover.
9:34 – Post-Replacement Settings: After battery replacement, the car's drive mode will default to "C" (Comfort) and the infotainment screen may revert to the car display, requiring manual adjustment.