12V 40Ah SLA Battery

CBL40-12  |  12V 40Ah Sealed Lead Acid Battery  |  480Wh  |  Group U1  |  M6 Terminal  |  29.1 lbs (13.2 kg)  |  Lead Calcium Alloy  |  UL 1989 Certified

The Canbat 12V 40Ah SLA battery is a valve-regulated sealed lead acid (VRLA) AGM battery designed for mobility equipment, medical devices, and standby power systems requiring extended runtime and high reserve capacity. Featuring lead calcium alloy plate construction and absorbent glass mat (AGM) technology, the battery delivers maintenance-free operation, a self-discharge rate below 2% per month, and reliable float and cyclic performance across a 20+ year design floating life at 20°C. Built to Group U1 dimensions and rated at 40Ah and 480Wh, the CBL40-12 provides greater reserve capacity than standard 35Ah U1 batteries — making it a preferred choice for higher-demand mobility and standby power applications. Certified to UL 1989.

Typical Applications

The CBL40-12 12V 40Ah SLA battery is designed for mobility equipment, medical devices, and commercial standby power systems requiring high reserve capacity and extended runtime. Rated at 40Ah (C20) at 12V and built to Group U1 dimensions, this 12V 40Ah SLA battery delivers greater runtime than standard 35Ah U1 batteries and is suited to higher-demand mobility and standby applications. Typical deployment includes power wheelchairs, mobility scooters, medical mobility equipment, medical devices, UPS backup power systems, fire alarm systems, emergency lighting systems, security alarm systems, access control systems, electric power systems (EPS), small off-grid power systems, and DC control systems. The CBL40-12 is commonly used as a replacement 12V 40Ah SLA and AGM battery in power wheelchairs, mobility scooters, medical equipment, UPS systems, fire alarm systems, and emergency lighting installations.

UL 1989 Certification

UL 1989 certification provides third-party verification of battery safety and performance requirements commonly specified for Canadian commercial and institutional installations. Certified batteries are frequently selected for fire alarm, emergency lighting, telecommunications, security, and standby power systems where engineers, contractors, and Authorities Having Jurisdiction (AHJs) require documented product certification.

The CBL40-12 is certified to UL 1989, the Underwriters Laboratories standard for sealed lead acid batteries, covering electrical performance, mechanical integrity, and safety requirements including overcharge tolerance and short circuit protection. Certification is issued following independent third-party laboratory evaluation — not manufacturer self-declaration.

Canbat maintains UL 1989 certification across its sealed lead acid battery lineup.

VRLA AGM Construction

The CBL40-12 12V 40Ah SLA battery uses valve-regulated absorbent glass mat (AGM) construction, with electrolyte immobilized within puncture resistant micro-porous glass mat separators. The sealed recombinant cell design prevents acid emission under normal operating conditions and permits installation in any orientation. Lead calcium alloy plate construction eliminates watering requirements, reduces gassing, and supports low self-discharge performance. Batteries stored at 25°C may be held up to six months before a refresh charge is required; storage at elevated temperatures reduces this interval.

Technical Specifications

Dimensions & Weight

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