Pirate Battery YTX20H-BS Motorcycle Battery — Sealed AGM, Maintenance-Free, 18‑Month Warranty

Pirate Battery YTX20H-BS is a sealed, maintenance-free AGM motorcycle battery engineered to deliver reliable starting power and long service life across a wide range of powersports applications.

Designed for riders and vehicle owners who need a dependable replacement battery, the YTX20H-BS uses Absorbent Glass Mat (AGM) technology to offer spill-resistant operation, low self-discharge, and strong cranking ability right out of the box. It arrives fully charged and ready to install, sized to common YTX20H-BS form-factor dimensions (6.97in x 3.46in x 6.1in) so it fits many motorcycles, ATVs, and personal watercraft. Backed by U.S.-based support and an 18-month warranty for orders within the United States, this battery is intended to be a straightforward, drop-in substitute for many OEM and aftermarket part numbers.

How does this battery perform when starting a motorcycle?

The YTX20H-BS provides concentrated bursts of current designed for fast, consistent starting even after periods of inactivity. AGM construction means low internal resistance and stable voltage under load, which helps deliver reliable engine cranks day after day.

• High cold-cranking potential for quick starts
• AGM design reduces voltage sag under load
• Ready-to-install charge prevents delayed starts out of the box

Is the Pirate Battery YTX20H-BS maintenance free and spill-proof?

Yes—this model is sealed and maintenance-free, using absorbed glass mat separators that trap electrolyte and prevent leaks. That sealing eliminates the need to check fluid levels and reduces the risk of corrosion caused by spills.

• Sealed posts and housing for mess-free installation
• No periodic water topping or acid handling required
• Lower self-discharge than flooded lead-acid equivalents

Which vehicles and part numbers does this battery replace?

The YTX20H-BS fits many powersports machines and replaces numerous OEM part numbers across motorcycle and ATV manufacturers. Verify physical dimensions and terminal orientation before purchase to ensure compatibility.

• Common replacements include CTX20-BS, CYTX20-BS, ES16B and others
• Exact dimensions: L 6.97in × W 3.46in × H 6.1in for fit confirmation
• Suitable for motorcycles, scooters, ATVs, UTVs, and some personal watercraft

What kind of support and warranty comes with the battery?

Pirate Battery offers U.S.-based customer service with an 18-month warranty and a 60-day refund policy for domestic orders. The support team can help with installation questions, warranty claims, and troubleshooting common battery issues.

• 18-month limited warranty for qualifying U.S. purchases
• 60-day refund window for buyer confidence
• Access to experts for product and installation guidance

Who is this for: The Pirate Battery YTX20H-BS is aimed at riders, mechanics, and powersports owners seeking a durable, maintenance-free replacement battery that’s ready to install. It’s a practical choice for anyone who prefers a sealed AGM solution with compact dimensions and wide cross-reference coverage for popular motorcycle and ATV models. Confirm terminal layout and physical size against your vehicle’s specifications to ensure proper fit before ordering.