What is the difference between EFB and AGM?

1 Answers
Randy
07/30/25 4:55am
The differences between EFB and AGM are: 1. Different internal structures: EFB is a flooded battery; AGM is an absorbent glass mat (AGM) battery. 2. Different installation locations: EFB flooded batteries are installed near the engine compartment; AGM batteries are installed in the trunk. 3. Different automaker preferences: German and American automakers mainly promote AGM technology; Japanese manufacturers mainly promote EFB technology. 4. EFB has a wider applicable temperature range than AGM, as AGM batteries cannot be used in high-temperature environments. A battery generally refers to any chemical energy storage device that can be recharged and reused after a certain amount of discharge.
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