YUAM62RBH YTX20H-BS 12V Motorcycle Battery - High Performance AGM

In this review the Yuasa YUAM62RBH YTX20H-BS is judged as a practical, high-performance replacement battery for motorcycles and powersports machines that need a reliable, maintenance-free power source. The single biggest reason to consider it is its combination of a sealed Absorbed Glass Mat design and advanced lead-calcium technology, which together deliver strong starting power and eliminate the need to add water. For riders who value ease of setup and a spill-proof battery that supplies high cold cranking amps, this battery is worth evaluating.

Key Features

• 12 volt, 18 Ah capacity: Provides a dependable reserve for starting and short-duration electrical loads without rapid voltage drop.
• 310 cold cranking amps: Delivers high starting power so even larger displacement V-Twin engines can be cranked reliably.
• AGM spill-proof design: Electrolyte is absorbed in glass mat separators so the battery is nonspillable and safe to mount in multiple orientations.
• Bottle supplied dry: Ships without acid and includes an acid bottle for the user to activate the battery when ready, simplifying storage and transport.
• Advanced lead-calcium technology: Holds specific gravity longer than conventional lead antimony batteries, reducing self-discharge and water loss.
• Totally sealed maintenance-free: Valve regulated construction eliminates the need to ever add water or perform routine fluid checks.

Who It's For

This battery suits motorcycle and powersports owners who need a compact, high-cranking battery that is easy to store, ship, and activate before installation. It is appropriate for riders with mid- to large-displacement engines who appreciate a sealed, maintenance-free unit that will not leak and is straightforward to set up.

Those who should look elsewhere include users requiring long-term deep-cycle performance or extended reserve capacity beyond 18 Ah, and buyers who prefer a pre-activated, ready-to-use battery straight from the box rather than a bottle-supplied dry unit.

Pros & Cons

Pros

• High starting power with 310 CCA makes it reliable for demanding engines.
• AGM, valve-regulated design means no spills and no water maintenance.
• Bottle-supplied format improves shelf life and shipping safety until activation.
• Compact size fits many vehicle-specific applications and installs cleanly.

Cons

• Some customers report mixed battery life and charge-holding, so longevity can vary by use and charging practice.
• Requires user activation with the included acid bottle rather than arriving pre-filled.

Specifications

Voltage	12 volt
Capacity	18 Ah @ 10HR
Cold Cranking Amps (CCA)	310 CCA
Charge Current (Regular)	1.8 A
Size (L x W x H)	6 7/8 in x 3 7/16 in x 6 1/8 in
Weight with Acid	15.1 lbs

Our Verdict

The Yuasa YUAM62RBH YTX20H-BS is a solid choice for riders who need a compact, powerful, and maintenance-free AGM battery that is spill-proof and user-activated. It offers clear value for applications requiring strong starting amps and simple installation, though those seeking the longest possible calendar life or a pre-filled battery should consider alternatives.

Frequently Asked Questions

Do I need to add water after activation?
No. The valve-regulated AGM design eliminates water loss and there is no need to add water at any time.

How is the battery shipped and activated?
The battery is supplied dry with an acid bottle; the user fills it with the supplied electrolyte when ready to activate and install.

Is this battery suitable for large V-Twin engines?
Yes; with 310 CCA many customers report it will crank larger displacement motorcycle engines reliably.