AGM car batteries (Absorbent Glass Mat) were developed for use by the military in the 1980’s. Their high performance and enhanced reliability also suit todays modern vehicles that are often heavily equipped with sophisticated electrical systems. The last decade or so has seen an increase in the number of cars using stop/start technology and AGM batteries – but what does this mean? In this short article, we will explain the technology and outline the advantages of AGM batteries.

What is stop/start technology?

The stop/start system was developed to help reduce fuel consumption and CO2 emissions, to create a safer environment. A stop/start system shuts off your vehicle while stationary and can be restarted once the driver puts pressure on the accelerator or clutch. By shutting the engine off after about 1.5 seconds and prolonging this until it is safe to drive off, this technology is designed to reduce fuel consumption and CO2 emissions by 5-10%. However, vehicles with stop/start technology place a greater demand on a vehicle’s battery – and this is where the AGM battery stands head and shoulders above the more conventional acid flooded lead battery.

What are the advantages of an AGM battery?

The AGM battery is cheap to manufacture compared to other strategies used to help reduce carbon emissions, making vehicles more efficient and cleaner. AGM batteries offer a number of advantages over traditional lead batteries, including;

• Less expensive – they can typically last up to two times longer.
• More reliable – greater tolerance to hot and cold temperatures.
• Greater performance – ideally suited for vehicles equipped with lots of electronic devices and accessories.
• Slower discharge whilst not in use.
• More durable – greater vibration resistance.
• Safer – no free-flowing electrolyte, therefore no spill hazard.
• More powerful – improved performance.
• AGM technology batteries can typically reduce CO2 emissions by up to 8% more than traditional batteries.

Vehicles fitted with AGM batteries must be re-coded whenever removed or replaced; therefore is is recommended this be done by a professional. Do you need a replacement AGM car battery? Or would you like to know if your vehicle is compatible with AGM battery technology? Simply enter your registration number or make and model. Whichever battery you have, make sure you use the right charger. If you would prefer to speak to one of us, give us a call on 0800 164 9361. We’re happy to help.