How Do EFB and AGM Batteries Differ?

JUL.11,2023

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Almost all vehicles leaving the assembly line will either need an EFB or the more powerful AGM type battery due to the expansion of Start-Stop engines.

Many people enquire as to whether they can exchange these batteries for less expensive EFB batteries. You can choose the battery that is best for your car by understanding how these two types differ from one another.

Learn how to select the ideal gasoline option for your car by reading on.

An Overview of AGM Batteries

AGM batteries are a type of deep-cycle battery. They are sealed and don’t need any upkeep.

AGM batteries set themselves apart from other types of deep cycle batteries thanks to the usage of Absorbed Glass Mat (AGM) technology. Compared to more conventional flooded lead-acid designs, this smart gel battery design loses less electrolyte. Your AGM battery’s overall efficiency is increased by its sealed design.

Battery Charging for AGMs

The current used to charge AGM batteries is moderate and steady. They can be charged with a battery charger that is set to the AGM mode.

The charger will continue to charge until it reaches roughly 14.6 volts or whatever power level the manufacturer deems appropriate. The charging apparatus will thereafter keep this level.

The AGM battery needs to be charged using this low-current method in order to function. Overcharging or excessive discharge can harm AGM batteries.

Using AGM Batteries

For motorcycles, boats, autos, and recreational vehicles, AGM batteries work well. AGM batteries can replace traditional lead-acid batteries in some situations. They will function equally well or better than a typical battery.

AGM batteries can be used with solar panels and other off-the-grid power sources. When there is no grid power available, they can serve as a battery backup.

Anyone whose car requires greater starting current than an EFB battery can offer should use AGM batteries.

Advantages of AGM Batteries

These batteries have a long lifespan. In strong discharge cycles, AGM batteries can live up to twice as long as conventional batteries.

Additionally, they are vibration- and spill-resistant.

The design of AGM batteries prevents acid leakage. It doesn’t matter if you leave them upside down or on their side for a few days. These batteries are therefore perfect for off-road vehicles that are prone to rolling over while in operation.

Extreme temperatures have less potential to harm them.In frigid climates like those found in Alaska or Canada, an AGM battery won’t freeze. Additionally, it won’t blow up if it gets too hot from being too close to the engine.

Batteries EFB

An improved variant of the traditional wet-flooded technique is called an enhanced flooded battery (EFB). They are entry-level batteries that employ gel batteries’ chemistry, but in a novel way that enables the usage of stop-start cars. These vehicles demand quick charging and discharging cycles, which conventional flooded lead-acid batteries are not well suited for.

Battery Charging for EFBs

If you’re charging an EFB battery at home, your best bet is to use a charger designed especially for EFB batteries. These chargers will keep your battery in good condition because they can charge your battery at higher voltages than standard car chargers.

EFB Batteries' benefits

EFB batteries provide a variety of advantages over AGM batteries. Their longer cycle life is their greatest benefit. Compared to an AGM battery, an EFB battery can endure more charge and discharge cycles before it approaches the end of its usable life.

EFBs have the additional benefit of being able to discharge more fully than AGMs in high-vibration applications. Because they will suffer a lot of shaking while operating, they are more suited for vehicles like motorcyclists.

EFBs offer a substantially faster recharge time than AGMs, even in low-voltage conditions. Recharging an EFB takes less time than recharging an AGM battery because EFBs can receive huge amounts of energy at once without suffering damage.

Battery issues with EFBs

EFB batteries are more prone to sulfation than AGM batteries. When insulating sulfur is put to a battery’s positive and negative plates, sulfation results.

This inhibits the battery from operating at maximum efficiency.

Sulfation happens when EFB batteries aren’t consistently charged to their maximum capacity.

Batteries: EFB vs. AGM

EFB batteries could be the best option for you if you have a basic start-stop vehicle. However, if your automobile requires more electricity (for example, if it has a bigger engine), an AGM battery is typically better suited to your needs. AGM batteries are a better option if you frequently use your automobile for longer distances and regularly drain the battery.

AGM batteries are a good option for frequent drivers since they are more resistant to draining and can sustain numerous charge cycles without losing power. These batteries are more temperature resistant and have reduced internal resistance, thus they will live longer in general.

Get Your Vehicle Reliable Batteries

For many drivers, EFB and AGM batteries are excellent options. Either choice may be suitable for you if you want a high-quality battery that will endure for many years. However, an AGM battery might be more appropriate for your needs if you want something that can withstand harsh temperatures and other challenging circumstances.

You can see a specialist at RB Battery to learn more about the best battery for your car. Reach out to us right away, and one of our specialists will assist you in selecting the best option for your car.

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