AGM batteries are sealed lead-acid batteries that use an absorption glass mat to absorb and contain the electrolyte. This makes them maintenance-free and spill-proof. They are often used in applications where weight is a concern, such as in golf carts and wheelchairs.
GEL batteries are also sealed lead-acid batteries, but use a gel electrolyte instead of an absorption glass mat. This makes them more resistant to vibration and shock, making them a good choice for applications such as ATVs, lawn mowers, and snowmobiles.
Lithium batteries are a type of rechargeable battery that uses lithium ions as the electrolyte. They are much lighter than lead-acid batteries, making them a good choice for applications where weight is a concern. They also have a higher energy density, making them a good choice for applications where space is a concern.