Car batteries, typically lasting three to five years within a vehicle’s average 13-year lifespan, will inevitably require replacement multiple times. While the process of changing a car battery is straightforward, the crucial aspects of storing both new and old car batteries are often overlooked. Whether you’re a seasoned auto technician or new to vehicle maintenance, understanding the safe storage of car batteries is paramount due to the significant energy they hold, even when depleted. Let’s delve into why safe storage is essential and the recommended practices.
A Close Call: Battery Storage Mishap
Consider this real-life incident from a franchised car dealership, highlighting the potential dangers of improper battery storage in any repair shop environment.
In the back corner of the service area, near an overhead door, smoke was detected late in the workday. Upon investigation, it was traced back to a pallet of used car batteries. It wasn’t just smoke; a fire had ignited. Quick-thinking staff grabbed fire extinguishers and managed to put out the flames.
Fortunately, only one battery and the wooden pallet beneath it were ablaze. The surrounding fifteen or so batteries remained untouched by direct flame, indicating the fire was in its initial stages. Damage was minimal, requiring only the removal of the burnt pallet and battery, and airing out the workshop.
The cause? While not definitively confirmed, the dealership employee speculated that the battery in question might have fallen from the stack. This could have led to arcing against another battery or caused a crack and acid leak. Sulfuric acid, although not flammable itself, can ignite combustible materials like the wooden pallet, initiating the fire.
Following this incident, the dealership implemented revised procedures for storing both new and used batteries. This near disaster underscored the critical need for safe battery storage protocols, emphasizing that a fire after hours could have had devastating consequences for the entire dealership.
Best Practices for Storing Used Car Batteries
So, what constitutes the correct way to store used car batteries commonly replaced in auto repair shops? Despite being partially or fully discharged, used batteries require the same safe storage practices as new batteries in a parts department.
Store Batteries Upright and Securely
It may seem obvious, but removed car batteries awaiting disposal must be stored upright. This is crucial for preventing electrolyte leaks and minimizing the risk of terminals arcing.
Beyond simply being upright, batteries should be positioned to prevent tipping or falling. Stacking used batteries is strongly discouraged due to the instability and increased risk of damage.
Keep Away from Combustible Materials
Battery storage areas should be free of flammable materials. Opt for non-combustible and corrosion-resistant racking. Plastic pallets are a superior choice compared to wood pallets, which are combustible. Furthermore, keep cardboard, paper, and other flammable organic materials away from battery storage zones.
Ensure Proper Ventilation
Off-gassing from batteries poses a significant hazard, especially in confined storage spaces. Gases released can accumulate, creating a potentially explosive atmosphere. Adequate ventilation is vital. Storing batteries in well-ventilated areas with consistent airflow helps dissipate any released gases, reducing risk.
Maintain a Cool Storage Temperature
While less critical for used batteries than new ones, maintaining a cool ambient temperature is still advisable. A temperature around 60°F (approximately 15°C) is ideal. Avoid extreme heat or cold, such as outdoor storage, even for short periods, as temperature fluctuations can increase the potential for issues.
Responsible Disposal of Old Car Batteries
Accumulation of used batteries in a repair shop can quickly become problematic, particularly during peak seasons for replacements like winter and summer. The requirement for single-layer storage further exacerbates space concerns. Therefore, timely disposal through recycling is crucial.
Regularly arrange for battery collection or delivery to a recycler. Many local recyclers offer pickup services for batteries and other scrap metals like catalytic converters and brake rotors. Alternatively, designate a staff member for drop-offs, ensuring they are trained in safe handling procedures, including eye and hand protection and secure, single-layer transport.
Recycling is environmentally responsible, recovering 99% of battery materials for reuse in new products. More immediately, it eliminates battery clutter in your workspace and mitigates potential safety hazards, contributing to a safer and more efficient shop environment.
