At Battery’s 2 Go, we stock a growing range of auxiliary batteries designed to meet the evolving electrical demands of modern vehicles across Sydney and NSW. As more vehicles adopt complex electronics and start-stop systems, auxiliary batteries are becoming essential to maintaining performance, reliability, and comfort. Many vehicles—especially European makes like Mercedes-Benz, BMW, and even newer models from Chrysler and Jeep—are now equipped with two batteries. The auxiliary battery is a secondary power source designed to support the electrical system, especially during engine stop/start, idle periods, and when running essential systems like air conditioning, infotainment, safety sensors, and interior lighting. By taking the load off the main starter battery and alternator, the auxiliary battery helps reduce wear and ensures your car's systems stay functional—even when the engine is off.
View ProductsFor over 30 years, Battery’s 2 Go has been at the forefront of Australia’s Auxiliary Batteries supply industry. We are committed to providing high-quality batteries tailored to every vehicle's needs—from vintage models to the latest high-tech cars. Reach out to us today and find the perfect battery for your vehicle.