The Osaka 631 N40L is a high-performance 12V 40Ah battery, built to deliver consistent, maintenance-free power for passenger vehicles.

Constructed with calcium-calcium alloy technology, this fully sealed unit eliminates the need for regular water top-ups, providing long-term reliability with minimal upkeep. Its low self-discharge rate and robust cold-cranking performance ensure dependable engine starts, even in fluctuating temperatures.

The reinforced, vibration-resistant housing protects against wear and corrosion, helping to extend service life and reduce the risk of unexpected breakdowns. This battery is optimized to meet the demands of daily commutes and city driving, delivering stable power for both engine starting and on-board electronics.

Key Specifications

Rated Voltage: 12V

Rated Capacity: 40Ah

Dimensions: 23.6 × 12.8 × 18.2 cm (total height including terminals: 20.4 cm)

Net Weight: 11.5 kg

Battery Type: Maintenance-Free Calcium-Calcium Lead Acid

Key Features: Sealed spill-proof design, vibration-resistant construction, low self-discharge rate, all-weather performance

Backed by strict quality certifications, this battery is a durable, cost-effective choice for drivers seeking consistent performance in everyday use.

What's in the box
1 x Osaka 631 N40L 12V 40Ah Maintenance-Free Automotive Battery
1 x Safety & Installation Guide (where applicable)