When selecting a battery for your particular needs, it is important to know the differences between an AGM (Absorbent Glass Mat) and a GEL battery. Both are VRLA (Valve-Regulated Lead-Acid) batteries and have their advantages based on how and where they are applied. In this post, we’ll look at the most important characteristics of each type, which will help you choose a battery technology that is right for your application – be it automotive, renewable energy, or marine.
What is an AGM Battery?
AGM (Absorbent Glass Mat) batteries are meant to be a spill-proof and maintenance-free version of the conventional lead-acid batteries. While in an AGM battery, the electrolyte is soaked up in a glass mat making it more stable and faster when charged or discharged. They are widely employed in automobiles, emergency power, and industry, particularly where deep cycling and long cycle life are required.
Key Features of AGM Batteries
AGM batteries offer several advantages that make them suitable for a wide range of applications:
Maintenance-Free: AGM batteries are closed and do not need to be replenished with water or electrolyte, which is suitable for users who do not want to constantly monitor the battery.
High Discharge Rate: These batteries can supply short but very high currents, which is necessary for turning over engines or for supplying high loads which suddenly appear.
Durability: AGM batteries are resistant to shock and vibrations which makes it ideal for use in off road cars or any environment that is likely to cause the battery to vibrate.
Versatility: The AGM batteries are suitable for cold and hot climates because they do not compromise on performance in any type of climate.
What is a GEL Battery?
Another type of VRLA battery is the GEL batteries in which the electrolyte is immobilized in a silica gel. This gelled electrolyte makes the battery less likely to leak and also allows it to hold its charge for longer intervals. GEL batteries are ideal for deep cycle usage and are commonly used in renewable energy solutions, mobility aids, boats and more.
Key Features of GEL Batteries
GEL batteries also offer several unique benefits that set them apart from other battery types:
Deep-Cycle Performance: GEL batteries are perfect for a system where the battery is deeply cycled, which makes them ideal for solar systems and off-grid systems.
Long Lifespan: Because of their ability to accept deep discharge, GEL batteries tend to have longer cycle life in applications where they are called upon to deliver power for long durations.
Vibration Resistance: Like AGM batteries, GEL batteries are very robust and can withstand good amounts of vibrations, which is good for cars and boats.
Low Self-Discharge Rate: GEL batteries require less charge compared to other batteries, and they can be used for a long time without being recharged.
Which Battery is Right for You?
When it comes to choosing between AGM and GEL batteries, it all comes down to the application. For a battery to be used for starting engines, for high loads or for vehicles in tough conditions, then the AGM batteries are ideal. However, if your application demands high cycle capability like in renewable energy systems or marine applications, then GEL batteries might be slightly superior in terms of cycle life and performance. Both are good choices but the key is to make sure which battery will suit your needs best.
