AGM batteries and lithium batteries both have benefits and drawbacks. The lithium ion battery outperforms the AGM battery in terms of weight, cycle life, and charging speed.
Additionally, lithium ion batteries have a flat discharge curve, which means that if you use one to power a torchlight, the light won’t decrease as the battery power depletes—it will simply turn off.
On the other hand, AGM batteries are less expensive to produce, have a higher CCA rating, and are vibration-proof.
It’s crucial to understand that you can’t simply replace your car’s AGM starting battery with a lithium ion battery because your charging system probably isn’t configured to do so.
Advice: If you’re confused about the type of battery to use, always see a mechanic.