Yuasa YTX20HL AGM Powersports Battery YUAM720BH — 310 CCA, 18 Ah, Factory-Activated H Series

This Yuasa H Series YTX20HL combines higher cold-cranking capability with advanced lead-calcium construction and absorbed glass mat (AGM) separators to provide a reliable starting source for motorcycles, ATVs, UTVs, personal watercraft and other powersports machines. The battery ships factory-filled and fully charged, so it’s ready to install and does not require watering. Its compact footprint and sealed design make it suitable where vibration resistance, tilt tolerance and nonspillable operation are important.

How does the YTX20HL improve starting performance?

The H Series boosts cold-cranking amps by up to about 30% compared with older designs, giving stronger starts in cooler conditions and after periods of inactivity. That extra CCA helps quick-rev starts and reduces stress on the starter and ignition system.

• Cold Cranking Amps: 310 CCA at 0 °F (-18 °C)
• Higher CCA due to optimized plate chemistry
• AGM construction sustains power delivery under load

What makes this an AGM and factory-activated battery?

Absorbed Glass Mat separators hold electrolyte in the glass fibers rather than as free liquid, rendering the pack nonspillable and safer to mount in different orientations. Factory activation means the battery arrives filled, sealed and charged—no assembly, acid handling or initial charge required on your part.

• AGM design prevents leaks and limits gas emission
• Valve-regulated casing reduces water loss and maintenance
• Factory-filled and charged—ready to install out of the box

How long does the chemistry keep the battery ready compared to older types?

Yuasa’s lead-calcium alloy slows self-discharge and maintains specific gravity far longer than conventional lead-antimony batteries, meaning the battery retains charge and usable capacity during storage. That stability translates to fewer unwanted flat batteries when equipment sits idle between seasons.

• Advanced lead-calcium plates reduce self-discharge
• Longer shelf life and extended standby readiness
• Less frequent top-up charging required during storage

What are the size, weight and charging recommendations?

The YTX20HL is compact but substantial: designed to fit common YTX20H battery trays while delivering robust capacity and longevity. Use a charger compatible with AGM batteries and follow Yuasa or vehicle manufacturer guidelines for regular charging and storage conditioning.

• Dimensions: 6 7/8 in (175 mm) L × 3 7/16 in (87 mm) W × 6 1/8 in (155 mm) H
• Weight (filled): 15.1 lbs; Capacity: 18 Ah @ 10HR
• Suggested regular charge current: ~1.8 A; use AGM-capable charger

Who is this for? The Yuasa YUAM720BH YTX20HL is aimed at riders and owners of powersports vehicles who need a dependable, maintenance-free battery that can be installed immediately and withstand vibration and tilt. It fits users who prefer sealed AGM technology for safety and convenience—seasonal riders, off-road enthusiasts, and anyone replacing a YTX20H-style battery wanting higher cold-start reliability.