2016 Ram 2500 Battery Size & Group

Quick answer

• BCI Group Size: Group 94R (H7)
• Cold Cranking Amps (CCA): 800 CCA
• Reserve Capacity (RC): 140 minutes
• AGM vs. Flooded: AGM is recommended
• Terminal Layout: Left-hand positive
• Physical Dimensions (L x W x H): 12.4 x 6.9 x 7.5 inches
• Dual-Battery Setup: The diesel version of the 2016 Ram 2500 comes with a dual-battery setup from the factory.

Replacement battery options

• Interstate: MTX-94R/H7
• Optima: DH7 YELLOWTOP
• DieHard: Platinum AGM H7-AGM
• Odyssey: ODP-AGM94R H7 L4
• ACDelco: 94RAGM

AGM vs flooded — which does this vehicle need?

The 2016 Ram 2500 comes from the factory with an AGM (Absorbent Glass Mat) battery. It is highly recommended that you replace it with another AGM battery. AGM batteries are more resistant to vibration, which is a major plus in a heavy-duty truck like the Ram 2500. They are also better at handling the high electrical demands of modern vehicles, with their many computers, sensors, and infotainment systems.

While you could technically install a flooded battery to save a few dollars, it is not a good idea. The charging system in the 2016 Ram 2500 is designed to work with an AGM battery, and a flooded battery will likely have a much shorter lifespan. In the long run, you will save money and headaches by sticking with an AGM battery.

Post-installation relearn / reset procedure

There is no special relearn or reset procedure required after disconnecting or replacing the battery in a 2016 Ram 2500. All of the vehicle's computer systems will reset themselves automatically when the new battery is connected.

However, you may lose your radio presets and other saved settings. You will also need to reset the clock.

Signs of a failing battery

• Slow engine crank: This is the most common sign of a failing battery. The engine will turn over more slowly than usual when you try to start it.
• Dim headlights: If your headlights seem dimmer than usual, it could be a sign that your battery is not providing enough power.
• Warning light: The battery warning light on your dashboard will illuminate if the charging system is not working properly.
• Corrosion on the battery terminals: This is a sign that the battery is leaking acid. The corrosion should be cleaned off immediately, and the battery should be tested to see if it needs to be replaced.
• Swollen battery case: If the battery case is swollen or bloated, it is a sign that the battery has been damaged and needs to be replaced immediately.

Common battery issues for this generation

The most common battery issue for the 2016 Ram 2500 is premature battery failure. This is often due to the high electrical demands of the vehicle, as well as the fact that many owners do not drive their trucks long enough to fully charge the battery.

Another common issue is corrosion on the battery terminals. This is often caused by a leaking battery, but it can also be caused by road salt and other environmental factors.

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