1. Introduction
This manual provides essential information for the safe and effective use of your OPTIMA YellowTop DS46B24R Dual Purpose Sealed AGM Battery. The OPTIMA YellowTop battery is designed for high-performance applications, offering both premium cranking power and deep-cycle capabilities. It is suitable for vehicles with high electrical demands, such as those with winches, advanced audio systems, or commercial equipment. Please read this manual thoroughly before installation and operation.
2. Safety Information
Always observe the following safety precautions when handling and installing batteries:
- Wear appropriate personal protective equipment, including safety glasses and gloves, to prevent injury from acid or electrical discharge.
- Batteries contain sulfuric acid, which is corrosive. Avoid contact with skin, eyes, or clothing. In case of contact, flush immediately with water and seek medical attention.
- Batteries produce explosive gases. Keep sparks, flames, and lit cigarettes away from the battery. Ensure adequate ventilation during charging or when working near the battery.
- Do not short-circuit battery terminals. This can cause severe burns, fire, or explosion.
- Always disconnect the negative (-) terminal first and reconnect it last to minimize the risk of accidental short circuits.
- Do not attempt to open or modify the battery. This is a sealed unit and is not user-serviceable.
- Keep batteries out of reach of children.
- Dispose of old batteries responsibly according to local regulations.
3. Product Features
The OPTIMA YellowTop DS46B24R battery offers several advanced features:
- Dual Purpose Design: Provides both strong starting power and deep-cycle capabilities for consistent performance.
- SpiralCell Technology: Utilizes 99.99% pure lead for more power delivery and superior performance compared to conventional flat-plate batteries.
- High Vibration Resistance: Up to 15 times more resistant to vibration than standard flooded batteries, enhancing durability.
- Maintenance-Free: Sealed AGM design eliminates the need for water additions, offering maximum convenience.
- Fast Charging: Designed for faster charging capabilities, reducing downtime.
- Longer Life: Offers up to 3 times longer life compared to standard flooded batteries under typical operating conditions.

Figure 1: OPTIMA YellowTop battery applications, including late-model domestic trucks, off-road/4x4 vehicles, and extreme load-laden vehicles, highlighting its tested and trusted performance.

Figure 2: Key performance benefits of the OPTIMA YellowTop battery, emphasizing 15 times more vibration resistance, ability to tackle tougher terrain, and up to 3 times longer life.
4. Specifications

Figure 3: Side view of the OPTIMA YellowTop battery, illustrating its physical dimensions.
| Attribute | Value |
|---|---|
| Model Number | 8171-767 (DS46B24R) |
| Voltage | 12-Volt |
| Cold Cranking Amps (CCA) | 450 CCA |
| C20 Capacity | 38 AH |
| Reserve Capacity | 66 minutes |
| Dimensions (L x W x H) | 9 5/16" x 5 1/16" x 8 15/16" (237mm x 129mm x 227mm) |
| Weight | 26 pounds |
| Terminal Type | SAE Post |
| Technology | Sealed AGM (Absorbed Glass Mat) |
| UPC | 721112819877 |
5. Setup and Installation
Battery installation can be complex and involves electrical hazards. If you are not experienced with automotive electrical systems, it is recommended to have the battery installed by a qualified professional.
General Installation Steps:
- Preparation: Ensure the vehicle's ignition is off and all accessories are disconnected. Wear safety glasses and gloves.
- Locate Battery: Identify the location of the existing battery in your vehicle. For some models, like certain Toyota Prius, the 12V auxiliary battery is located in the trunk or rear compartment.
- Disconnect Old Battery: First, disconnect the negative (-) terminal cable, then the positive (+) terminal cable. Carefully remove any hold-down clamps or brackets.
- Remove Old Battery: Lift the old battery out of the tray. Be aware of its weight.
- Clean Tray and Terminals: Clean the battery tray and terminal clamps to remove any corrosion or debris. Use a wire brush and a battery terminal cleaner solution if necessary.
- Position New Battery: Place the OPTIMA YellowTop battery into the battery tray, ensuring it is seated securely.
- Connect New Battery: First, connect the positive (+) terminal cable, then connect the negative (-) terminal cable. Ensure connections are tight and secure.
- Secure Battery: Reinstall any hold-down clamps or brackets to prevent battery movement.
- Ventilation (if applicable): For vehicles where the battery is located in the cabin or trunk (e.g., some Prius models), ensure any ventilation tubes are properly connected to the battery's vent port. The OPTIMA YellowTop DS46B24R is designed with a vent port for this purpose.
- Final Check: Double-check all connections and ensure no tools are left in the engine compartment or near the battery.
Note on Vehicle Specific Fit: This battery is designed for a vehicle-specific fit, including select Prius models. While the physical dimensions are provided, minor adjustments to existing brackets may be necessary in some installations. Always verify fitment for your specific vehicle year and model.
6. Operating Instructions
Once installed, the OPTIMA YellowTop battery operates automatically as part of your vehicle's electrical system. It provides power for starting the engine and running vehicle accessories. Its dual-purpose design ensures reliable starting power even after periods of accessory use.
- Charging: The battery will be charged by the vehicle's alternator during operation. For optimal performance and longevity, especially if the vehicle is stored for extended periods or frequently used for short trips, consider using a compatible AGM-specific battery charger.
- Deep Cycle Use: The YellowTop's deep-cycle capability makes it suitable for applications requiring sustained power draw, such as powering auxiliary electronics or winches.
7. Maintenance
The OPTIMA YellowTop is a maintenance-free battery, meaning it does not require water additions. However, periodic checks can help ensure optimal performance and longevity:
- Terminal Inspection: Periodically inspect battery terminals for cleanliness and tightness. Ensure there is no corrosion. If corrosion is present, clean with a wire brush and a baking soda/water solution, then rinse with clean water and dry thoroughly.
- Battery Case Inspection: Check the battery case for any signs of damage, cracks, or swelling. If damage is observed, the battery should be replaced.
- Hold-Down Security: Ensure the battery is securely held in place to prevent vibration damage.
- Charging (if needed): If the vehicle is not used regularly, or if accessories are frequently used with the engine off, consider using a smart charger designed for AGM batteries to maintain a full charge. Avoid overcharging.
8. Troubleshooting
This section addresses common issues you might encounter with your battery.
| Problem | Possible Cause & Solution |
|---|---|
| Engine cranks slowly or not at all | Possible Cause: Discharged battery, loose or corroded terminals, faulty starter. Solution: Check battery voltage. If low, charge the battery. Inspect and clean terminals. If battery is charged and terminals are good, have the starter and charging system checked by a professional. |
| Battery not holding a charge | Possible Cause: Faulty charging system (alternator), parasitic drain, battery nearing end of life. Solution: Have the vehicle's charging system tested. Check for accessories drawing power when the vehicle is off. If the battery is old, consider replacement. |
| Corrosion on terminals | Possible Cause: Chemical reaction, loose connections. Solution: Disconnect terminals (negative first), clean with a wire brush and baking soda/water solution, rinse, dry, and re-connect tightly. Apply anti-corrosion grease. |
| Battery case appears swollen or damaged | Possible Cause: Overcharging, internal damage. Solution: This indicates a serious issue. The battery should be replaced immediately by a professional. Do not attempt to charge or use a swollen battery. |
9. Warranty Information
OPTIMA Batteries typically come with a manufacturer's warranty covering defects in materials and workmanship. The specific terms and duration of the warranty may vary based on the point of purchase and region. Please retain your proof of purchase for warranty claims.
For detailed warranty information, including coverage periods and claim procedures, please refer to the warranty card included with your battery or visit the official OPTIMA Batteries website.
10. Support and Contact
If you have questions, require technical assistance, or need to report an issue, please contact OPTIMA customer support or your authorized dealer.
- Online Support: Visit the official OPTIMA Batteries website for FAQs, product information, and support resources.
- Authorized Dealers: Contact the retailer or installer from whom you purchased the battery for local support.





