Hyundai Ioniq: Battery (12 Volt, Plug-In Hybrid Vehicle) / For Best Battery Service

Hyundai Ioniq (AE) 2017-2025 Owner's Manual / Maintenance / Battery (12 Volt, Plug-In Hybrid Vehicle) / For Best Battery Service

Hyundai Ioniq. For Best Battery Service

Keep the battery securely mounted.
Keep the battery top clean and dry.
Keep the terminals and connections clean, tight, and coated with petroleum jelly or terminal grease.
Rinse any spilled acid from the battery immediately with a solution of water and baking soda.

Battery (12 Volt, Plug-In Hybrid Vehicle)

WARNING To prevent SERIOUS INJURY or DEATH to you or bystanders, always follow these precautions when working near or handling the battery: Always read and follow instructions carefully when handling a battery...

Battery Recharging

WARNING Always follow these instructions when recharging your vehicle's battery to avoid the risk of SERIOUS INJURY or DEATH from explosions or acid burns: Before performing maintenance or recharging the battery, turn off all accessories and place the Engine Start/ Stop button in the OFF position...

Other information:

Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Charging System Warning Light, Engine Oil Pressure Warning Light

Charging System Warning Light When this warning light illuminates while running the engine, the battery is not being charged. Immediately turn OFF all electrical accessories. Try not to use electrically operated controls, such as the power windows...

Hyundai Ioniq (AE) 2017-2025 Service Manual: Specifications

SpecificationSafety Plug▷ Specification Item Specification Rated Voltage (V) 400 Rated Current (A) 80 Fuse Rated Current (A) 125 Fuse Melting Time Rated Current x 110% Min...