1. Product Overview
The Mighty Max Battery YTX4L-BSLIFEPO4 is a 12V Lithium Iron Phosphate (LiFePO4) battery designed for power sport applications. This battery offers high performance, durability, and a lightweight design compared to traditional lead-acid batteries. It is maintenance-free and engineered for reliable starting power.

Image 1.1: Mighty Max YTX4L-BS Lithium Iron Phosphate Battery with key dimensions (4.44in x 2.75in x 3.25in).
Key Features:
- High Performance: 12V with 150 Cold Cranking Amps (CCA) for strong starting power.
- Lightweight Design: Up to 80% lighter than equivalent lead-acid batteries.
- Extended Lifespan: Offers 5 times the life of a lead-acid equivalent with over 2000 deep cycles at 80% depth of discharge.
- Maintenance-Free: Sealed design requires no liquid maintenance.
- Versatile Mounting: Can be mounted in any position or orientation.
- Durable: Shock and vibration resistant.
Video 1.2: Overview of Mighty Max Battery features, highlighting durability, versatility, and performance across various applications.
2. Setup and Installation
2.1 Unpacking and Inspection
Carefully remove the battery from its packaging. Inspect the battery for any signs of physical damage. Ensure all terminals are clean and free from debris.
2.2 Terminal Connection
Connect the battery terminals securely. Ensure the negative terminal is on the left and the positive terminal is on the right, as indicated on the battery. Loose terminals can cause heat buildup and damage to the battery.

Image 2.1: Close-up view of a battery terminal, showing the connection point.
2.3 Mounting
The Mighty Max YTX4L-BSLIFEPO4 battery can be mounted in any position or orientation due to its sealed design. Choose a secure location within your vehicle or application that minimizes exposure to extreme heat or physical impact.
Video 2.2: Demonstration of installing a Mighty Max YTX4L-BS battery in a motorcycle, highlighting the ease of fit and connection.
3. Operating Instructions
This battery is designed for use in various power sport applications, including motorcycles, ATVs, snowmobiles, and personal watercraft. Ensure your vehicle's electrical system is compatible with a 12V lithium iron phosphate battery.

Image 3.1: A motorcycle in motion, illustrating a typical application for the Mighty Max YTX4L-BS battery.
3.1 Initial Use
The battery typically arrives partially charged. For optimal performance and lifespan, it is recommended to fully charge the battery before its first use.
3.2 Cold Cranking Amps (CCA)
With 150 CCA, this battery provides reliable starting power even in colder conditions. However, extreme cold can temporarily reduce battery performance. Allow the battery to warm up slightly if experiencing difficulty starting in very low temperatures.
4. Maintenance
The Mighty Max YTX4L-BSLIFEPO4 is a maintenance-free battery, meaning it does not require water refilling. However, proper care and charging practices are essential for maximizing its lifespan.
4.1 Charging
- Use a Compatible Charger: Only use a charger specifically designed for lithium iron phosphate (LiFePO4) batteries. Using an incompatible charger can damage the battery and void the warranty.
- Avoid Overcharging/Undercharging: Follow the charger's instructions to ensure proper charging cycles.
4.2 Cleaning
Keep the battery terminals and casing clean. Use a dry cloth to wipe away any dust or dirt. Avoid using harsh chemicals or solvents.
4.3 Storage
If storing the battery for an extended period, ensure it is fully charged and stored in a cool, dry place. Periodically check the charge level and recharge if necessary to prevent deep discharge.

Image 4.1: Mighty Max Battery showing warning labels and general product information.
5. Troubleshooting
If you encounter issues with your Mighty Max YTX4L-BSLIFEPO4 battery, consider the following common troubleshooting steps:
- No Power/Weak Start:
- Check battery charge level. Recharge if low.
- Inspect terminal connections for tightness and corrosion. Clean and tighten if necessary.
- Verify the charger is compatible and functioning correctly.
- Battery Not Holding Charge:
- Ensure the charging system of your vehicle is working properly.
- Confirm no parasitic drains are present in your vehicle's electrical system.
- Unusual Odor or Swelling:
- Immediately disconnect the battery and contact customer support. Do not attempt to use or charge a damaged battery.
For persistent issues, refer to the warranty information or contact Mighty Max Battery customer support.
6. Specifications
Detailed technical specifications for the Mighty Max YTX4L-BSLIFEPO4 battery:
| Specification | Value |
|---|---|
| Model Number | YTX4L-BSLIFEPO4MP20611 |
| Voltage | 12 Volts |
| Battery Cell Composition | Lithium Ion (LiFePO4) |
| Battery Capacity | 3 Amp Hours |
| Cold Cranking Amps (CCA) | 150 CCA |
| Case Dimensions (L x W x H) | 4.44 x 2.75 x 3.25 inches |
| Weight | 0.82 pounds (per battery) |
| Polarity | Negative on Left, Positive on Right |
| Reusability | Rechargeable |
| Recommended Uses | Power Tool (general category, includes power sports) |

Image 6.1: Technical diagram and parameter chart for the YTX4L-BSLIFEPO4 battery, including dimensions and performance data.
7. Warranty and Support
7.1 Warranty Information
This Mighty Max Battery YTX4L-BSLIFEPO4 comes with a Full One Year Manufacturer's Warranty. This warranty covers defects in materials and workmanship under normal use.
7.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact Mighty Max Battery customer support. Refer to the product packaging or the official Mighty Max Battery website for current contact information.





