How AGM Battery Works?
In AGM battery, there are some lead plates, which are soaked in a solution of water and sulfuric acid. When some power is fed to the battery due to the car’s alternator, there are a chemical reaction produce in the battery. In which positive plates (+) produce oxygen ions (O2-) and negative plates (-) produce hydrogen ions (H+). Due to which batteries generate power which is used to drive the lights, radio, air conditioner and some devices of the car.
Advantages of AGM Batteries:
- Good Output: AGM batteries provide a good amount of power output.
- Maintenance Free: They make water inside themselves and suck it to make power. Because of which there is no risk of them leaking, and it’s maintenance free.
- Charging Time: Compared to other batteries, AGM batteries charge up to two times faster.
- Lifetime: Their life is also more than other common batteries, which is 5 to 8 years.
Disadvantages of AGM Batteries:
- Sensitive to Overcharge: We can’t overcharge it because if we leave it on charge and overcharge it, it’s at risk of getting damaged.
- Capacity Reduce: His power capacity also decreases with time. Which is a very bad disadvantage.
- High Cost: Due to its many advantages, its price is also high due to the fact that it is maintenance free.
How EFB Battery Works?
EFB batteries designed for cars that have a start-stop system. In EFB battery, there are also some lead plates, which are soaked in a solution of water and sulfuric acid. When the battery is attached with the car then the electrolytes which are inside the battery are done an action and release power so in the reaction of electrolytes the power is produce which is used to drive the lights or some devices of car.
Advantages of EFB Batteries:
- Temperature: EFB batteries are capable of working well even at a temperature of 50 degrees.
- Support of Start-Stop System: This is a good battery for the start-stop engine system.
What is Start-Stop System? This is what happens in a special car engine. Because of this, when we stop the car, the engine off, mean when we depress the clutch. And when we release the clutch, the engine is auto turn on.
- Maintenance Free: EFB batteries are also maintenance free, which is a good advantage.
- Deep Cycle: EFB battery also works as a deep cycle battery, meaning it is capable of delivering the amount of power to the circuit continuously.
Disadvantages of EFB Batteries:
- Lifetime: The lifetime of EFB batteries are also low, which is 5 to 6 Years.
- Overcharge: Like as AGM batteries, if we overcharge it, there is a risk of it becoming blown and blossom.
- Inferior reliability: If we compare to AGM battery, EFB battery has shorter inferior reliability.
What is the difference between EFB and AGM battery?
| AGM Battery | EFB Battery |
| 5 to 8 Years lifetime | 5 to 6 Years Lifetime |
| No Start-Stop System support | Start-Stop System support |
| Overcharging Issue | Overcharging Issue |
| Long Inferior Reliability | Shorter Inferior Reliability |
| Heat Problem | Capable of working at 50 degree temperature |
| No Deep Cycle | Also Work as Deep Cycle Battery |
AGM vs EFB Battery: Which is Better EFB or AGM Battery?
According to research or after doing a comparison between EFB and AGM battery, we found that EFB batteries are better than AGM. Because everything is right in front of you, we have done a full compression which is calculated EFB battery have more benefits than AGM battery. But I would say that you should buy what battery that fulfill your requirements.
Conclusion:
So this was a complete comparison between AGM vs EFB Battery. Now I hope you knew which is better EFB or AGM battery. We cleared all things about AGM batteries and EFB. Like, the lifetime of AGM battery which is 5 to 8 years and the lifetime of EFB battery is 5 to 6 Years which is not a good thing. But after all comparison EFB win that comparison and EFB is better than AGM battery.
