Can-Am® X3 Big Battery Kit | UTVS-X3-BIG-BATT-KIT

SKU: UTVS-X3-BIG-BATT-KIT
Regular price $325.00

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Can-Am® X3 Big Battery Kit – High-Capacity AGM Upgrade

Upgrade your OEM starting battery with massive reserve capacity and higher output.
The UTV Stereo Can-Am X3 Big Battery Kit replaces the factory battery with a UTVS1200 Platinum Series AGM battery, delivering over double the cold cranking amps and 3X the capacity of stock.

This kit is built for riders who want maximum power during rides—perfect for running upgraded stereos, light bars, whips, radios, and other high-demand accessories while the vehicle is running.


⚡ Who This Kit Is For

✔ Riders running stereos, lighting, and accessories while driving
✔ Those who want maximum reserve capacity without adding a second battery
✔ Drivers who want a simple, bolt-on battery upgrade
✔ 2017+ 2-seat and 4-seat Can-Am X3 owners

⚠ If you want to power accessories with the vehicle OFF, we recommend the Can-Am X3 2nd Battery Kit instead.


🔧 Key Features & Benefits

  • 3X the Capacity of Stock
    55 amp hours vs. the factory ~18Ah battery
  • More Than Double the Cold Cranking Amps
    Reliable starts with stronger voltage under load
  • Maximum Output & Extended Runtime
    Keeps voltage stable for stereos and accessories during rides
  • Built for Capacity, Not Just Starting
    Designed to deliver sustained power—not quick bursts only
  • Drop-In Replacement with Custom Bracket
    Secure, bolt-on installation with no cutting or modification

🔋 Maximum Output & Extended Runtime

Highest Reserve Capacity for the X3

The included UTVS1200 AGM battery delivers 55Ah of usable power, allowing you to:

  • Run louder stereos without voltage drop
  • Power more accessories simultaneously
  • Maintain stable voltage under heavy load
  • Ride longer with confidence

This is the ideal solution for drivers who demand more power, more runtime, and more reliability from their X3.


🏁 Why UTV Stereo Platinum Series Batteries

  • ALWAYS fresh & fully charged
    Never stored for long periods before shipping
  • Near-zero defect rate
    Proven reliability in real-world off-road use
  • Spill-proof & maintenance-free AGM design
  • Shock & vibration resistant
  • Installable in any orientation

These batteries are engineered for long-lasting energy delivery, not just quick starts.


🛠 Heavy-Duty Mounting Bracket

The included custom heavy-duty mounting bracket securely holds the larger AGM battery in place, even under extreme vibration, impacts, and aggressive terrain.

Built to last—no flex, no movement, no compromises.


📦 What’s Included

  • UTV Stereo UTVS1200 Platinum Series AGM Battery
  • Heavy-Duty Can-Am X3 Battery Mounting Bracket
  • All Required Mounting Hardware

🔌 Battery Maintenance Recommendation

To maintain peak performance and maximize battery lifespan, AGM batteries must remain charged during storage.

We strongly recommend pairing this kit with:

  • UTV Stereo 12V Automatic Battery Charger / Maintainer, or
  • UTVS Dual-Bank Battery Charger / Maintainer

This prevents sulfation, preserves capacity, and ensures your battery performs like new for years.


✅ Vehicle Fitment

  • Compatible with all 2017+ Can-Am X3 models
  • Fits 2-seat and 4-seat configurations

🔑 Big Battery vs. 2nd Battery Kit (Quick Guide)

Feature Big Battery Kit 2nd Battery Kit
Increases capacity
Powers accessories while driving
Powers accessories with engine OFF
Isolates starting battery
Simplest install

🚀 Final Thoughts

If you want maximum power, longer runtime, and rock-solid voltage while riding, the Can-Am X3 Big Battery Kit is the ultimate single-battery upgrade. It’s simple, powerful, and built to handle serious electrical demands.