Which battery is in my Elantra? Reading the label

The manual's Battery capacity label section shows two labels, Type A and Type B, and lists each value as a pair: CMF60L-DIN/AGM70L-DIN, 60Ah/70Ah and 550A/760A. Read in that order, the two batteries compare like this:

From the Battery capacity label section of the Elantra owner's manual (code CN7), read November 10, 2026. The label also lists a cold-test current by SAE (CCA). The manual does not say which Elantra versions get which battery, so go by the label on your car.

Whichever battery you have, the manual's Battery recharging section says your vehicle has a maintenance-free, calcium-based battery.

If your Elantra has an AGM battery

The manual marks the AGM battery as "if equipped" and gives it its own rules:

From the Battery and Idle Stop and Go (ISG) sections of the Elantra owner's manual.

Elantra battery care from the owner's manual

The manual's tips for longer battery life:

• 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 electrolyte off the battery right away with a solution of water and baking soda.
• If the car will not be used for an extended period, disconnect the battery cables.
• If you will not use the car for a long time and it is cold enough for the battery to freeze, fully charge the battery and store it indoors.
• Never connect unauthorized devices to the battery, and do not tilt it.

Hyundai's normal maintenance schedule in the same manual lists battery condition as an inspection item every 8,000 miles or 12 months. Before winter, the manual says to inspect the battery and cables, since cold temperatures may affect battery performance; an authorized Hyundai dealer or a service station can check the charging level.

From the Battery, Normal maintenance schedule and winter driving sections of the Elantra owner's manual.

How to charge an Elantra battery

The manual gives two charging rates, depending on how the battery ran down:

From the Battery recharging section of the Elantra owner's manual. AGM batteries need an AGM charger (see above).

Before charging, turn off all accessories and stop the engine. The manual says to remove the battery from the vehicle and charge it in a well-ventilated area, wear eye protection, keep flames and sparks away, and stop or slow the charge if the cells begin boiling violently. Remove the negative cable first and install it last. When you are done, turn off the charger main switch, then unhook the negative clamp, then the positive clamp.

How to jump start an Elantra

The manual calls jump starting dangerous if done incorrectly; if you are unsure, have a service technician or towing service do it. Use only a 12 V power supply, never jump start a frozen battery, and do not push-start the car. The manual's steps:

1. Position the vehicles close enough for the jumper cables to reach, without letting the vehicles touch. Keep away from fans and other moving parts in the engine compartment, even with the vehicles off.
2. Turn off all electrical devices such as the radio, lights and air conditioning. Put both vehicles in P (Park), apply the parking brakes and turn both vehicles off. Open the hood.
3. Connect one jumper cable to the red, positive (+) battery terminal of your Elantra, and the other end to the red, positive (+) battery or jumper terminal of the assisting vehicle.
4. Connect the second cable to the black, negative (-) battery or jumper terminal of the assisting vehicle, and the other end to the chassis ground of your Elantra. Do not connect it to the negative (-) terminal of the discharged battery: a spark could cause the battery to explode.
5. Start the assisting vehicle, let it run at about 2,000 RPM for a few minutes, then start your Elantra.
6. Disconnect the cables in the exact reverse order: your chassis ground, the assisting vehicle's negative (-) terminal, the assisting vehicle's positive (+) terminal, then your Elantra's positive (+) terminal.

Afterward, keep the Elantra running for at least 30 minutes at idle or driving; a completely discharged battery may need as long as 60 minutes of runtime to fully recharge. The Battery section adds: drive for 30 minutes or idle for at least 60 minutes before shutting it off, or it may not restart. If it does not start after a few attempts, have it inspected by an authorized Hyundai dealer.

From the Jump Starting and Battery recharging sections of the Elantra owner's manual.

What to reset after a battery change or disconnect

The manual lists these items as possibly needing a reset after the battery has been discharged or disconnected:

• Auto up/down windows
• Sunroof
• Trip computer
• Climate control additional features

The manual also notes that some driving information stored in the trip computer resets when the battery is disconnected. Planning a battery check? Schedule service or see our battery service in michigan city.

From the Reset items and trip computer sections of the Elantra owner's manual. Items apply where your car has them.

Michigan City Hyundai service hours

From Michigan City Hyundai's website, November 10, 2026. The website lists Monday to Saturday service hours and none for Sunday. Holiday hours can differ.