2019 Toyota RAV4 Battery Size & Group

Quick Answer

• BCI Group Size: 35
• CCA Rating (minimum): 550 CCA
• Reserve Capacity (minimum): 100 minutes
• AGM vs. Flooded: Toyota RAV4s are designed for flooded lead-acid batteries from the factory. While an AGM battery can be used as an upgrade, the charging system is optimized for flooded batteries.
• Terminal Layout: Top Post; Positive on the Right (JIS standard as viewed from the front of the vehicle).
• Physical Dimensions (Group 35): Approximately 9.06 inches (L) x 6.89 inches (W) x 8.86 inches (H)
• Dual-Battery Setup: Not applicable; the 2019 Toyota RAV4 uses a single battery.

Replacement Battery Options

When it's time to replace the battery in your 2019 Toyota RAV4, several reputable brands offer excellent options. Always confirm the BCI Group 35 size and ensure the CCA and Reserve Capacity meet or exceed the original specifications.

• Interstate: MT5-35, MTP-35 (verify specific model for your region and vehicle trim)
• Optima: YellowTop DS46B24R (though this is a JIS B24R size, a Group 35 with appropriate dimensions is often a direct fit. Always double-check dimensions and terminal orientation.) or a RedTop 35
• DieHard: Platinum AGM Group 35, Gold Group 35
• Odyssey: 35-PC1400
• ACDelco: 35AGM HR (AGM) or 35-RED (Flooded)

(Note: Part numbers can vary slightly by retailer and specific battery line. Always cross-reference with your vehicle's requirements.)

AGM vs. Flooded — Which Does This Vehicle Need?

The 2019 Toyota RAV4 comes from the factory with a conventional flooded lead-acid battery. Its charging system is calibrated to effectively charge and maintain this type of battery. A flooded battery is a perfectly suitable and cost-effective choice for replacement.

An Absorbent Glass Mat (AGM) battery can be an upgrade. AGM batteries generally offer better vibration resistance, a longer lifespan, and a slower self-discharge rate, making them a good option if you frequently run accessories with the engine off or live in extreme climates. However, an AGM battery will typically cost more. If you opt for an AGM, ensure it's a Group 35, and be aware that while the RAV4's charging system will charge an AGM, it might not fully optimize its lifespan compared to a vehicle specifically designed for AGM from the factory.

Post-Installation Relearn / Reset Procedure

After disconnecting and replacing the battery in your 2019 Toyota RAV4, you might notice a few things behaving differently or see some warning lights. This is normal, as many vehicle systems lose their "memory" without power. Here's a typical procedure for relearning and resetting:

1. Idle Relearn: Start the engine and let it idle for about 10-15 minutes without touching the accelerator. This allows the engine control unit (ECU) to relearn its idle parameters.
2. Power Window Reset: If your automatic up/down windows aren't working correctly, you may need to reset them. For each window, hold the switch down until the window is fully open, then hold it down for an additional 2-3 seconds. Then, pull the switch up until the window is fully closed, and hold it up for an additional 2-3 seconds. Repeat for all windows.
3. Radio/Navigation: You may need to re-enter your radio station presets and possibly pair your Bluetooth devices again. Some navigation systems might require driving a short distance to recalibrate.
4. Clock: Reset the time on your dashboard clock.
5. Driver's Aides: Features like Lane Departure Alert, Pre-Collision System, and Blind Spot Monitor might show temporary warning lights. Driving the vehicle for a short period, sometimes up to 10-20 miles, will usually clear these as the systems recalibrate.
6. Tire Pressure Monitoring System (TPMS): The TPMS light may come on temporarily. Driving for a few miles at speeds above 25 mph should allow the system to reset. If it persists, ensure your tire pressures are correct and consult your owner's manual for a manual reset procedure if available.

Signs of a Failing Battery

Don't wait until your RAV4 won't start to think about battery replacement. Look out for these common signs:

• Slow Engine Crank: The most common sign. The engine sounds sluggish or takes longer to turn over when you start it.
• Dim Headlights/Interior Lights: Especially noticeable when the engine is off or during cranking.
• Warning Lights: A battery warning light on your dashboard.
• Corrosion: Fuzzy, blue-green buildup around the battery terminals.
• Swelling Battery Case: The battery case looks bloated or misshapen, indicating internal damage (often due to overcharging or extreme heat).
• Age: Automotive batteries typically last 3-5 years, depending on climate and driving habits.

Common Battery Issues for This Generation

While the 2019 Toyota RAV4 is generally reliable, some common factors can impact battery life and performance for this generation of vehicles:

• Short Trips: Frequent short drives where the engine doesn't run long enough to fully recharge the battery can lead to premature battery wear.
• Parasitic Draws: Aftermarket accessories or sometimes even a faulty OEM component can create a small, constant drain on the battery, especially if the vehicle sits for extended periods.
• Electronics Load: Modern vehicles have numerous electronics, even when turned off, which can put a continuous, albeit small, strain on the battery.
• Extreme Temperatures: Both extreme heat and extreme cold can significantly shorten battery life. Heat accelerates internal corrosion, while cold increases the demand on the battery to start the engine.

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