The battery that refuses to die

The circular economy has become central to sustainability, but automotive batteries have followed its principles for decades. Lead-acid batteries show how recovery, reuse and responsible collection can work at scale.

Long before “circular economy” became everyday business language, the lead-acid battery industry had already developed systems to collect used products, recover valuable materials and return them to productive use. That model remains highly relevant in South Africa. This matters, both for industry and the environment.

More recyclable than many realise

A lead-acid automotive battery is remarkably recyclable. According to AutoX, manufacturer of Willard Batteries, up to 98% of a lead-acid battery can be recycled. At the end of its useful life, therefore, a battery need not simply become waste. Its principal materials – lead, polypropylene plastic and sulphuric acid – can be separated and processed for reuse.

Lead can be recovered, refined and returned to battery manufacturing. Polypropylene casings can be processed into material suitable for new plastic products, including battery casings. The electrolyte can also be treated through established recycling processes.

The result is close to a closed loop: batteries are manufactured, used, collected and recycled, with recovered materials returning to production. Internationally, the effectiveness of this system is well established. In the United States, Battery Council International reports a sustained recycling rate of 99% for lead batteries. A typical new lead battery in that market contains at least 80% recycled material. The figures demonstrate what can happen when product design, collection infrastructure and economic incentives work together.

South Africa’s collection chain

The principle is particularly important in South Africa, where an established scrap-battery collection system encourages spent batteries to return to the recycling chain.

An industry-managed scrap deposit system gives old batteries financial value when they are replaced. Instead of being regarded purely as waste, the spent battery becomes a recoverable resource.

This gives dealers, distributors, workshops and fitment centres an important role. They are not simply the final link in supplying a new battery; they can also become the first link in returning the old battery to the recycling system.

AutoX operates a scrap-battery programme aimed at improving collection and recycling. Once recovered, useful materials can be directed back towards battery manufacturing.

Environmental and economic value

Recycling provides obvious environmental benefits, but the economics matter too. Recovering valuable materials reduces demand for virgin raw materials and keeps resources circulating within the economy. In South Africa, recovering and reusing lead from spent batteries can also support a more circular local manufacturing model.

Responsible collection is essential because lead and sulphuric acid require careful handling. Automotive batteries should therefore never be discarded with ordinary household waste or dumped. Returning them through established collection and recycling channels helps ensure that potentially hazardous materials are properly managed, while valuable resources are recovered.

The aftermarket’s responsibility

For the automotive aftermarket, this creates both responsibility and opportunity. Every battery returned by a customer forms part of a much larger system. When dealers and fitment centres actively encourage returns, they support responsible waste management, strengthen the recycling chain and help keep valuable materials in circulation.

The broader lesson extends beyond batteries. Circularity works best when products are designed for recovery, used products retain value and collection systems make returning them straightforward. The lead-acid battery industry has been developing that model for decades.

For a product designed to keep vehicles moving, there is something fitting about the fact that its materials can keep moving too – from one useful life into the next.