What should I do if the battery is dead on a Chevrolet Corvette C8 E-Ray?

Difficulty: Easy Safety Warning: The E-Ray uses a 12V Lithium-Ion starting battery. Never charge it with a standard lead-acid/AGM charger on a non-lithium setting, as this can damage the battery or create a fire hazard.

If your C8 E-Ray is completely unresponsive, you are dealing with a dead 12V starting battery. While the E-Ray has a high-voltage hybrid powertrain battery in the center tunnel, it still relies on a separate 12V battery to run the electronics, unlock the doors, and start the LT2 V8 ³.

Here is the procedure to get into the car and address the dead battery:

1. Access the Cabin Manually Since the electronic door buttons won't work, remove the physical key hidden inside your key fob. Insert it into the manual lock cylinder—which, on the C8 platform, is located up underneath the driver’s side side-scoop—and turn it firmly to mechanically unlatch the door ⁶.

2. Open the Frunk Once you are inside the cabin, locate and pull the manual release cable to pop the frunk ⁶. The 12V battery is located under the plastic maintenance panels in the frunk compartment.

3. Charging the E-Ray Battery The E-Ray is unique in the C8 lineup because its 12V starting battery is a lightweight Lithium-Ion (Li-ion) unit, not a standard lead-acid or AGM battery like those found in the Stingray or Z06 ⁴.

If you are going to attempt to charge it, you must use a battery charger or maintainer that has a dedicated Lithium setting ³. The OEM Corvette accessory maintainer is compatible with Li-ion batteries, and you can plug it directly into the 12V socket in the trunk, which is always hot ³.

4. Warranty Replacement C8s are known to occasionally drain their 12V batteries if an Over-The-Air (OTA) update gets hung up, or you may simply have a battery with a dead cell ⁹. Given how new the E-Ray is, if the battery fails to take a charge or drops voltage immediately after charging, do not bother fighting it. Have the dealership load test and replace it under warranty.