Background Image: Car driving through streaming orange lights - side view
August 29, 2022

Debunking start-stop car battery myths

When start-stop systems were first conceptualised back in the 1980s, the feature wasn’t quick to catch on. In fact, it wasn’t until 2013 that the technology became more widely used in vehicles.

Now, automotive manufacturers have largely implemented start-stop systems in their ranges. Drivers can enjoy the benefits of advanced start-stop technology in their fuel-efficient vehicles seamlessly. There’s no extended delay when taking off and no dramatic shake when the engine starts back up.

But as start-stop systems have rapidly evolved into the advanced technology we know today, some of the myths surrounding them have stuck around.

Myth 1: Start-stop technology increases fuel consumption

Start-stop car batteries use innovative technology to automatically stop a car’s engine when it’s stationary, such as when you’re stopped at traffic lights. When the brake is disengaged, the battery restarts so the driver can get on their way.

A common misconception is that this process of switching the engine off and on again increases fuel consumption; however, this isn’t the case.

Start-stop systems can use as much as 5% less fuel than traditional cars, which is because drivers avoid constant idling. In particular, drivers stuck in busy stop and go traffic can save significant amounts of fuel while stationary.

Myth 2: Waiting for the engine to start again stops you from driving off quickly

While early start-stop systems could take a second to get going, today’s advanced start-stop technology responds so quickly that there isn’t a noticeable delay when drivers press the clutch or accelerator.

Over the years demands for driving have grown, with modern cars having more than 150 electrical accessories. However, advanced technology like Absorbent Glass Mat (AGM) technology provides the consistent and reliable power drivers need to support their vehicle’s electrical features, all while operating start-stop systems smoothly and without delay when restarting the engine.

Myth 3: Start-stop systems damage your battery

While a traditional battery would not be equipped to support frequent engine starts and stops, robust start-stop batteries are designed to withstand the extra strain.

Modern start-stop vehicles have high electrical demands and require compatible battery technology to function reliably. AGM and EFB batteries are highly durable and ideal for use in advanced fuel-efficient cars with high electrical demands.

Myth 4: The start-stop battery you choose makes no difference

Not all start-stop car batteries are built equal. When determining which start-stop battery to fit your vehicle with, there are a few important points to weigh up.

  • Does your vehicle currently use an AGM or EFB battery?
  • Are you driving an entry-level or high-end start-stop vehicle?
  • Have you added extra equipment, features or appliances to your vehicle?
  • Do you usually drive short distances in urban traffic?
  • Is your vehicle only used seasonally?

Read more about how to decide which type of car battery you need in this article.

There’s no shortage of myths and misconceptions about start-stop systems. But nevertheless, today’s start-stop technology has revolutionised driving as we knew it and continues to advance and evolve to meet growing consumer demands.