Proudly Made in Australia
high-performance, safe, and energy-dense EV Lithium battery solutions
designed, built, and delivered in Australia.
What we offer
We specialise in high-performance, safe, and energy-dense EV lithium battery solutions. Our offerings include:
EV Performance Battery Replacements – Long-range replacement batteries for Nissan Leaf and other EVs, extending vehicle lifespan and range.
Heavy-Duty Battery Packs for Commercial EVs – High-energy-density lithium battery systems tailored for electric heavy trucks, buses, and industrial vehicles.
Learn more in our product information page.
“We aim to revolutionise the future of sustainable transportation by delivering innovative, high-performance, and safe battery solutions that empower the industry to transition to a greener, more efficient world.”
What People Are Saying
“Louis and team persisted in resolving a really complex issue with our amazing Nissan Leaf XEO 2013 after 40 KWH battery upgrade. Stoked with their determination and warranty service. Our Leaf is running a treat now with about five times greater range”
—Customer Google Review
“Louis the engineer went above and beyond at every step, shipping the car back and forth from Sydney, and installing the modifications sucessfully. Highly recommended upgrade for older Leaf owners, and highly recommended business!”
— Customer Google Review
At Bigger Energizer, we are committed to developing cutting-edge, high-density, and safe battery systems tailored for commercial heavy-duty vehicles, including weight-sensitive applications like rubbish collection trucks. Through advanced anti-propagation designs, optimised energy management systems, and a dedication to sustainability, we aim to drive the electrification of heavy-duty vehicles while prioritizing safety, efficiency, and environmental responsibility.