Parts Unlimited YT4B-BS Factory-Activated AGM Maintenance-Free Battery

Parts Unlimited YT4B-BS Factory-Activated AGM Maintenance-Free Battery

Drop in a battery that's ready to ride from the moment it arrives. The Parts Unlimited YT4B-BS is a factory-activated AGM (Absorbent Glass Mat) maintenance-free battery built to deliver reliable cranking power, extended service life, and spill-proof performance across a wide range of powersports applications.

Key Features

• Factory-activated and ready to install — no acid filling required
• AGM construction packs more power and discharges less in storage than conventional batteries
• Spill-proof design passes vibration and pressure differential spill-proof tests
• High-performance active material with anti-sulfation additive for longer battery life
• High capacity and cranking performance for dependable cold starts

Maintenance Tips

For maximum longevity, charge this battery once a month when the vehicle is not in service. AGM chemistry is sensitive to deep discharge — keeping it topped off extends its usable life significantly.

Fitment

YT4B-BS fitment. Verify compatibility with your specific make, model, and year before ordering.