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Electric Car Battery | ACDelco EREV

Built specifically to meet the unique demands of the Chevy Volt, the ACDelco EREV Battery performs a multitude of functions – from activating the relay which starts the Volt’s engine generator, to its backup of the sophisticated electronics. This battery has 115 minutes of Reserve Capacity (RC). It also features an absorbed glass mat construction and a competitive 24 month limited warranty*. The ACDelco EREV Battery is the only purpose-designed 12-volt replacement battery for the Volt specifically for the Chevrolet Volt’s system requirements.

  • Click below for non-commercial retail warranty information:**

- Auto Battery Warranty* Information

- 7A-30 Non-Commercial Retail Adjustments

*- 7A-31 Non Commercial Retail Adjustments


  • Click below for fleet and commercial warranty information

- 7A-28 Fleet and Commercial Applications

- 7A-29 Fleet and Commercial Applications

Signs of Wear & Troubleshooting:

Signs that a battery may need to be replaced are:

  • Engine will not crank
  • Battery runs down easily
  • Battery will not recharge
  • Corroded terminals
  • Cracked/Broken cover or container
  • Frequent slow speed or short distance driving
  • Faulty battery connections
  • Low voltage/open circuit
  • Long-term vehicle storage
  • Frozen battery


Good Maintenance Practices:

  • Check the auto battery as part of regular vehicle maintenance.
  • Keep auto battery terminals clean and free of corrosion. To remove corrosion from terminals use a terminal brush.
  • Check the alternator and make sure that it is not charging too high or low – if the alternator is not charging properly it will cause the battery to not charge correctly and cause deterioration.
  • Avoid exposing the auto battery to extreme heat whenever possible.
  • Turn off other electrical accessories (stereos, internal lights, etc.) as soon as they are no longer required to save electrical energy.



What is more important, Cold Cranking Amps or Reserve Capacity?

  • The Cold Cranking Amps (CCA) test is the number of amps required to crank an engine for 30 seconds at 0 degrees Fahrenheit. Due to lower-viscosity engine oils, gear reduction starters and smaller engines, having the right amount of CCA is required, but not too much.
  • More CCA will not start your car faster. The Reserve Capacity test is the number of minutes that a battery will last with the headlights left on or at a 25 amp draw. Due to the increased electronics in a vehicle, having as much Reserve Capacity as possible is now more important than having the excessive CCA.

How can I tell how many Cold Cranking Amps my battery has?

  • Most battery manufacturers put the CCA rating right on the label of the battery.
  • Be careful when shopping for batteries as some manufacturers put on the label a reference to Cranking Amps (CA).
  • This is a reference to Cranking Amps. This test is done at 32 degrees Fahrenheit and not at 0 degrees Fahrenheit like the Cold Cranking Amp (CCA) test.

How can I tell how much reserve capacity my battery has?

  • This should be on the label right under the CCA rating of the battery.

Does this battery perform well in cold weather?

  • It is important to have the right battery for your vehicle. Refer to OEM specifications in your Owner's Manual or an OEM-driven supplier such as ACDelco.

How long does this battery last without losing its charge?

  • All batteries need to be maintained. Parasitic drains in a vehicle can deplete a battery in 2 to 4 weeks. To be safe, vehicles should be started once a week or once every other week and idled for 5 minutes to ensure that the battery retains a reasonable state of charge.

What is the difference between an (Accessible) Maintenance-Free Battery and a Filler Cap Battery?

  • Batteries that are Accessible Maintenance-Free or Sealed Maintenance-Free have a calcium additive to the plate material inside the battery that helps to prevent the gassing off of electrolyte. These types of batteries should never need to have water added. Vent caps on these batteries should not be removed at any time as this breaks the seal and could allow seepage or water loss. Low electrolyte in these batteries is an indication of overcharging. Filler Cap batteries have an additive in them that requires the checking and refilling of the battery with distilled water.

If my car has a Start-Stop feature, does this affect what type of battery my car has?

  • In the case of GM vehicles, AGM batteries are required for Start-Stop vehicles. Use of a flooded battery will result in the life only being about 4 to 6 months. Most other vehicle manufacturers are using AGM for these vehicles as well.

Can I buy an ACDelco Professional or Advantage AGM battery instead of an ACDelco EREV AGM battery for my Chevrolet Volt?

  • No. The Chevrolet Volt requires this unique AGM battery.


*To the original retail purchaser. Parts only; installation not included. See your local retailer or independent service center that offers ACDelco Parts for details.

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