How do you know if your electric bike battery is lithium?

Lithium-ion batteries used in bikes are usually marked as such on the exterior of the battery pack, with the term "LIPOS" sometimes used to designate a lithium battery. The bike's manufacturer also specifies the battery type in the bike's specifications if the battery is part of the bike's initial equipment.

Lithium-ion batteries are considered ideal for electric bikes due to their high energy density, allowing riders to get more power from a smaller, lighter battery pack. However, lithium batteries are usually more expensive than other batteries and are still uncommon as standard equipment. Many enthusiasts build or order pre-built lithium battery packs for their bikes