1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your Part Synergy 12 Volt 720 Cold Cranking Amps (CCA) / 1250 Pulse Hot Cranking Amps (PHCA) BCI Group 48 Absorbed Glass Mat (AGM) Battery, Model ODPAGM48. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
Batteries contain sulfuric acid and produce explosive gases. Improper handling can result in severe injury or death. Always follow these safety precautions:
- Wear Eye Protection: Always wear safety glasses or a face shield when working with batteries.
- Wear Protective Clothing: Wear gloves and protective clothing to prevent contact with battery acid.
- Ventilation: Ensure adequate ventilation when charging or working near batteries to disperse explosive gases.
- No Smoking/Sparks: Keep flames, sparks, and smoking materials away from batteries.
- Avoid Short Circuits: Do not place tools or metal objects on top of the battery. Avoid touching both terminals simultaneously with metal.
- Acid Contact: If battery acid contacts skin or eyes, flush immediately with water for at least 15 minutes and seek medical attention.
- Lifting: Batteries are heavy. Use proper lifting techniques or assistance to prevent injury.
- Disposal: Dispose of old batteries responsibly at an authorized recycling center.
3. Product Features
The Part Synergy ODPAGM48 battery offers the following key features:
- Electrolyte Style: AGM (Absorbed Glass Mat) for spill-proof operation and enhanced vibration resistance.
- Voltage: 12 Volt nominal.
- Amp Hour Rating: 70 AH Capacity.
- Cranking Amps (CA): 1250 Amp.
- Cold Cranking Amps (CCA): 720 Amp.
- Terminals: SAE Top Terminals.
- Design: Low Maintenance, Eco-Friendly & Sustainable, Marine-Grade Durability.
- Fit Type: Universal Fit.

Image 1: Front view of the Part Synergy 12 Volt BCI Group 48 AGM Battery, Model ODPAGM48, showing the red top and black base with "ODYSSEY Performance" branding.
4. Setup and Installation
Proper installation is crucial for battery performance and safety. If you are unsure about any step, consult a qualified technician.
- Preparation:
- Ensure the vehicle's ignition is off and all accessories are disconnected.
- Wear appropriate safety gear (eye protection, gloves).
- Locate the existing battery.
- Disconnecting the Old Battery:
- First, disconnect the negative (-) terminal cable (usually black) from the old battery.
- Next, disconnect the positive (+) terminal cable (usually red).
- Remove any hold-down clamps or straps securing the old battery.
- Carefully lift and remove the old battery.
- Cleaning:
- Clean the battery tray and terminal cables thoroughly with a wire brush and a baking soda/water solution to remove any corrosion. Rinse with clean water and dry completely.
- Installing the New Battery:
- Place the new Part Synergy ODPAGM48 battery securely in the battery tray.
- Secure the battery with the hold-down clamps or straps to prevent movement.
- First, connect the positive (+) terminal cable to the positive (+) post of the new battery. Tighten securely.
- Next, connect the negative (-) terminal cable to the negative (-) post of the new battery. Tighten securely.
- Ensure all connections are tight and free of corrosion.
- Final Check:
- Double-check all connections.
- Ensure no tools or metal objects are left near the battery.
- Start the vehicle to confirm proper operation.

Image 2: Dimensional drawing of the Part Synergy ODPAGM48 battery, showing top, front, and side views with measurements in inches, and indicating right positive SAE terminals.
5. Operating Instructions
The Part Synergy ODPAGM48 is an AGM battery designed for reliable starting and accessory power. It is a sealed, maintenance-free battery, meaning it does not require water additions.
- Normal Operation: The battery will charge automatically when the vehicle's engine is running.
- Charging: If the battery needs external charging, use a charger specifically designed for AGM batteries. Avoid overcharging, as this can damage the battery. Follow the charger manufacturer's instructions.
- Deep Discharge: While AGM batteries are more tolerant to deep discharges than flooded batteries, repeated deep discharges can shorten battery life. Avoid leaving accessories on when the engine is off for extended periods.
- Storage: If storing the battery for an extended period, ensure it is fully charged and store it in a cool, dry place. Periodically check the voltage and recharge if it drops below 12.5 volts.
6. Maintenance
AGM batteries are considered low-maintenance, but regular checks can extend their lifespan and ensure optimal performance.
- Terminal Inspection: Periodically inspect battery terminals for corrosion, dirt, or loose connections. Clean terminals with a wire brush if necessary and ensure they are tight.
- Battery Case: Keep the battery case clean and dry. Wipe away any dirt or debris.
- Voltage Check: Regularly check the battery's open-circuit voltage with a voltmeter. A fully charged 12V AGM battery should read approximately 12.8-12.9 volts.
- Hold-Down: Ensure the battery hold-down is secure to prevent vibration, which can damage the battery.
- No Water Addition: Do not attempt to add water to this AGM battery. It is a sealed unit and does not require electrolyte replenishment.
7. Troubleshooting
If you experience issues with your battery, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Engine cranks slowly or not at all | Low battery charge, loose or corroded terminals, faulty starter, alternator issue. | Charge the battery. Clean and tighten terminals. Test starter and alternator. |
| Lights are dim | Low battery charge, poor ground connection. | Charge the battery. Check and clean ground connections. |
| Battery drains quickly | Parasitic draw (something is draining power when off), faulty charging system, old battery. | Test for parasitic draw. Have charging system inspected. Consider battery replacement if it's old. |
| Battery case is swollen or cracked | Overcharging, internal damage. | Immediately discontinue use. This indicates a dangerous condition. Replace the battery. |
If these steps do not resolve the issue, consult a professional automotive technician.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Part Synergy |
| Model Number | ODPAGM48 (also 1448 - ODPAGM48) |
| BCI Group Size | 48 |
| Voltage | 12 Volt |
| Electrolyte Style | AGM (Absorbed Glass Mat) |
| Amp Hour Rating | 70 AH Capacity |
| Cold Cranking Amps (CCA) | 720 Amp |
| Cranking Amps (CA) | 1250 Amp |
| Pulse Hot Cranking Amps (PHCA) | 1250 Amp |
| Terminal Type | SAE Top Terminals |
| Item Weight | 48 pounds |
| Product Dimensions (L x W x H) | 13.5 x 10 x 9.5 inches |
| Special Features | Eco-Friendly & Sustainable, Low Maintenance Design, Marine-Grade Durability |
| Fit Type | Universal Fit |
9. Warranty and Support
For warranty information or technical support regarding your Part Synergy ODPAGM48 battery, please refer to the documentation included with your purchase or contact Part Synergy customer service directly. Contact details can typically be found on the manufacturer's website or on your purchase receipt.