Motorcycle battery Yuasa YB4LB 12V 4Ah, lead-acid 12 V 4 Ah, maintenance type YB4LBDC

Yuasa YB4LB is a 12V 4Ah lead‑acid motorcycle battery designed for small motorcycles, scooters and similar light vehicles. It provides a nominal voltage of 12 volts and a capacity of 4 ampere‑hours, delivering sufficient starting power for compact engines and stable voltage for basic accessories. The battery is a conventional, maintenance‑type lead‑acid unit intended for straightforward replacement in applications that require this voltage and capacity.

Advantages

The battery offers reliable starting performance for low‑displacement engines and consistent electrical supply for lighting and small accessories. As a lead‑acid maintenance‑type battery it supports routine electrolyte level checks and conventional charging methods, allowing compatibility with most motorcycle chargers. Its compact dimensions and standard terminal layout make installation and replacement simple in compatible vehicle battery compartments.

Suitable for

• Small motorcycles and mopeds with 12V electrical systems
• Scooters and urban commuter bikes
• Replacement of worn or underperforming 12V 4Ah batteries
• Applications requiring a compact, serviceable lead‑acid power source

Key specifications

• Nominal voltage: 12 V
• Capacity: 4 Ah (ampere‑hours)
• Battery type: lead‑acid, maintenance type
• Intended use: starting and powering small vehicle accessories
• Physical form factor: compact motorcycle battery suitable for small battery compartments

How to use

Install the battery in the vehicle battery compartment observing correct polarity and secure mounting. If the battery has removable caps, check and maintain the electrolyte level with distilled water as required, following manufacturer safety guidance. Use a charger compatible with 12V lead‑acid motorcycle batteries and follow recommended charging rates to avoid overcharging. Before installation, ensure terminals and connections are clean and tight; after installation, verify electrical systems and starter operation.

Usage recommendations

For best performance and longevity, store and operate the battery at moderate temperatures, keep terminals free of corrosion, and recharge promptly after extended use or storage. When servicing electrolyte levels, use distilled water and handle acid with appropriate protective equipment. Consult vehicle manufacturer guidance for correct orientation and mounting torque, and replace the battery when starting performance or capacity noticeably declines.