Yuasa YUAM32X5B AGM Battery with Acid Pack | Maintenance Free 4Ah

Overview

The Yuasa YUAM32X5B is a compact, sealed AGM battery designed for small motorcycles, scooters, and powersport equipment. It operates maintenance-free, with the electrolyte securely contained, so you can rely on steady power without frequent watering or refills. When not in use, periodic charging is recommended to preserve performance.

Crafted with advanced lead-calcium technology, this model holds its electrolyte density longer than many conventional batteries, helping you maintain charge consistency across changing temps and riding styles. The Absorbed Glass Mat AGM separators keep the electrolyte absorbed, making the battery nonspillable, while the valve-regulated design minimizes water loss and the need for refilling in daily use.

The Bottle Supplied (BS) format means the battery ships dry, with electrolyte stored separately in a plastic container. Activation is simple: you add the electrolyte from the bottle when you’re ready, and you’ll have a ready-to-go unit that’s ideal for clean, compact installations. In terms of size, it measures 114 mm in length, 71 mm in width, and 106 mm in height, with a measured weight of around 4.2 lb when filled with acid. Specifications include a 4 Ah capacity at 10 hours and a regular charge current of 0.5 A, with 80 CCA at 0 °F (-18 °C), making it suitable for reliable starts in cooler conditions.

Key Benefits

• Maintenance-free operation with no water additions required; periodic charging is advised when stored for long periods.
• Longer-lasting electrolyte density thanks to advanced lead-calcium chemistry, helping consistent performance.
• Nonspillable AGM design with valve regulation minimizes leaks and water loss during use.
• Bottle Supplied activation enables a straightforward setup by the end user.
• Compact footprint and light weight facilitate easy installation in tight spaces found on smaller bikes and scooters.
• Rated at 4 Ah and 80 CCA, offering solid starting power across typical riding environments.

How to Use

If you have the Bottle Supplied option, open the electrolyte bottle and fill per the included instructions to activate the battery. Once activated, install the battery following your vehicle’s manual guidance and maintain regular charging if unused for extended periods.

Specs at a Glance

• Capacity: 4 Ah @ 10HR
• Regular Charge Current: 0.5 A
• CCA @ 0 °F (-18 °C): 80

With its compact size, sealed AGM design, and straightforward activation, the Yuasa YUAM32X5B offers a practical power solution for riders seeking reliability without the routine maintenance of traditional flooded batteries.