ASW Conversations: How critical lead acid batteries are, with EnerSys’ Bryce Gregory

The electric vehicle market is evolving, battery technology is changing but lead-acid options are far from obsolete, according to Bryce Gregory, director of strategic product technology at EnerSys.

Speaking to Auto Service World Conversations, Gregory highlighted the critical role these traditional batteries continue to play in modern vehicles, particularly in auxiliary power systems and safety functions.

“The technology used on vehicles today is well over 100 years old,” Gregory explained, “and the problems typically come in the extremes and also in the inability to project failure.”

Despite the growing popularity of lithium-ion batteries, lead-acid batteries remain indispensable, especially in 12-volt systems that power critical vehicle functions like security systems and key fob operations. Gregory noted that these batteries are particularly important in EVs, where charging a 12-volt battery presents unique challenges.

One of the most compelling arguments for lead acid batteries is their exceptional recyclability.

“Lead batteries today are 99% recycled,” Gregory emphasized. “They’re considered the best success story in the recycling space in the world today.”

He also addressed the complementary nature of lead-acid and lithium-ion technologies. “I see them working together for the foreseeable future,” Gregory observed, pointing out that lead acid batteries perform better in extreme conditions and offer more reliable performance across diverse climates.

Looking forward, Gregory sees promising innovations on the horizon.

“Building on what we learned in lithium batteries and applying it to lead-acid batteries” is one key area of development. This includes improving battery management systems, charging techniques, and exploring new materials that could enhance battery performance.

So lead acid batteries are not going away anytime soon, and they’re evolving to meet the demands of an increasingly electrified automotive landscape, Gregory highlighted.

“Having products that work in all the climates that vehicles will see is what you’re going to see for quite a while,” he said.

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