Product Overview

Summary: This Heavy Duty Battery Maintenance SOP sets out clear, practical steps for safely inspecting, servicing and handling large-format batteries used in industrial and commercial operations. It helps Australian businesses control the serious risks associated with high current, corrosive electrolytes and explosive gases, while extending battery life and ensuring critical plant and equipment remain operational.

Heavy duty batteries power essential equipment such as forklifts, EWPs, mining and construction plant, backup power systems and transport fleets. Poor maintenance of these batteries can lead to catastrophic failures, fires, acid burns, unplanned downtime and costly asset damage. This Safe Operating Procedure provides a structured, step-by-step approach to safely maintaining lead-acid, AGM, gel and other heavy duty battery types commonly used across Australian workplaces. It addresses the full lifecycle of maintenance activities, from pre-work checks and isolation through to topping up electrolytes, cleaning terminals, testing, charging and safe re-commissioning.

Developed specifically for Australian WHS expectations, this SOP helps businesses demonstrate due diligence under the model WHS laws while giving workers clear, practical guidance they can follow on the job. It defines roles and responsibilities, required PPE, safe work methods, and documented inspection regimes so that battery rooms, charging areas and mobile plant are managed consistently. By implementing this procedure, organisations can reduce the likelihood of electrical shocks, acid exposure, explosive gas ignition and manual handling injuries, while also improving battery performance, reducing replacement costs and supporting reliable operations.

Key Benefits

• Ensure safe and consistent maintenance of heavy duty batteries across all sites and shifts.
• Reduce the risk of electrical shock, short circuits, fires and battery explosions during maintenance and charging.
• Extend battery life and performance through structured inspection, cleaning, testing and charging practices.
• Demonstrate compliance with Australian WHS legislation and relevant electrical safety and hazardous chemicals requirements.
• Standardise training and competency expectations for technicians working on industrial and vehicle battery systems.

Who is this for?

• Maintenance Electricians
• Plant and Workshop Supervisors
• Fleet Managers
• WHS Managers and Coordinators
• Warehouse and Logistics Managers
• Facilities Managers
• Service Technicians
• Operations Managers
• Mechanical Fitters
• Auto-Electricians

Hazards Addressed

• Electrical shock and arc flash from exposed terminals and live conductors
• Short circuits caused by conductive tools, jewellery or incorrect connections
• Explosion and fire risk from hydrogen gas generated during charging
• Chemical burns and eye injuries from sulphuric acid and other electrolytes
• Inhalation of corrosive or irritating fumes in poorly ventilated battery rooms
• Manual handling injuries from lifting, moving or positioning heavy batteries
• Crush injuries from battery movement during handling or transport
• Environmental contamination from spills, leaks or incorrect disposal
• Slip hazards from electrolyte spills or contaminated floor surfaces

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Battery Types Covered
• 3.0 Roles, Responsibilities and Competency Requirements
• 4.0 Applicable Legislation, Standards and Codes of Practice
• 5.0 Required Tools, Test Equipment and PPE
• 6.0 Pre-Work Checks and Isolation Procedures
• 7.0 Safe Work Area and Ventilation Requirements
• 8.0 Manual Handling and Lifting of Heavy Batteries
• 9.0 Inspection and Cleaning of Batteries and Terminals
• 10.0 Electrolyte Level Checks and Top-Up Procedures
• 11.0 Battery Testing, Measurement and Recordkeeping
• 12.0 Safe Charging Procedures and Charge Room Controls
• 13.0 Managing Hydrogen Gas and Ignition Sources
• 14.0 Spill Response, Neutralisation and Waste Disposal
• 15.0 Re-commissioning, Return to Service and Tagging
• 16.0 Emergency Procedures for Acid Exposure, Fire and Electric Shock
• 17.0 Training, Induction and Competency Assessment
• 18.0 Inspection Schedules, Checklists and Maintenance Logs
• 19.0 Review, Audit and Continuous Improvement

Legislation & References

• Model Work Health and Safety Act and Regulations (as implemented in each state and territory)
• Safe Work Australia – Managing electrical risks in the workplace: Code of Practice
• Safe Work Australia – Managing risks of hazardous chemicals in the workplace: Code of Practice
• Safe Work Australia – Managing the work environment and facilities: Code of Practice (for ventilation and battery rooms)
• AS/NZS 3000: Electrical installations (Australian/New Zealand Wiring Rules)
• AS 4086.2: Secondary batteries for use with stand-alone power systems – Installation and maintenance
• AS/NZS 2676: Guide to the installation, maintenance, testing and replacement of secondary batteries in buildings
• AS/NZS 2161 series: Occupational protective gloves
• AS/NZS 1337.1: Personal eye protection
• AS/NZS 4501.2: Occupational protective clothing