Descriptions Technical Drawing

Western Electrical MF (Maintenance Free) Heavy-Duty BCI Group 31 Series is specifically engineered to meet the rigorous power requirements of the North American long-haul trucking and commercial fleet industry. Built in full compliance with BCI standards, these batteries provide exceptional cold-cranking amps (CCA) and high reserve capacity (RC) for heavy-duty Class 7 & 8 trucks, buses, and marine applications. Featuring a fully sealed, vibration-resistant construction with an advanced double-lid structure, the Group 31 series ensures leak-proof safety and zero maintenance even under the continuous road stress of cross-country logistics. Designed for maximum durability and high-cycle performance, Western Electrical BCI batteries are the dependable choice for powering modern sleepers, refrigeration units, and demanding heavy-duty electrical systems.

Features & Benefits :

• Advanced Silver-Calcium Technology: High-purity lead-calcium alloys with silver minimize self-discharge and offer exceptional resistance against grid corrosion.

• Safety-First Double Lid Design: Integrated with a Flame Arrestor, the reinforced lid prevents external sparks and ensures internal acid recycling.

• Enhanced Vibration Resistance: High-durability PE envelope separators and reinforced internal anchoring protect plates from severe road shock and prevent internal short circuits.

• Consistent Cranking Power: High-purity active materials guarantee solid and reliable starting performance, even in extreme temperatures.

• Built-in Hydrometer (Magic Eye): Allows for quick and easy checking of the battery’s state of charge at a glance.

• Heavy-Duty Ergonomic Handles: Robust, fold-down handles designed for safe manual handling and precise fitment into standard American battery boxes.

•Eco-Friendly & Maintenance-Free: A fully sealed, zero-maintenance design that is environmentally conscious and easy to manage for the aftermarket.

Cross Reference ：

Perfect Fit for: Freightliner, Kenworth, Peterbilt, International (Navistar), Mack, and Western Star heavy-duty trucks.

Replaces: Optima 31, Deka 31, Delphi 31, and ACDelco Group 31 series. Compatible with major American commercial fleet specifications.