Energy+ selected within Rechargeable Lithium-Ion (Li-Ion) Batteries

Rechargeable Lithium-Ion batteries are found virtually on every electronic devices sold today as standard batteries. Lithium-Ion batteries contain a higher energy density when compared to its predecessors Ni-Cd and Ni-MH and also do not suffer from the memory effect. We offer and stock a large selection of batteries for laptops, cellular phones, digital cameras, camcorders, power tools, MP3 players and more. Find your battery by using "By Category" or "By Brand" from the column on the left or call us for assistance.

What is a li-ion battery?
Lithium-ion batteries (sometimes abbreviated Li-ion batteries) are a type of rechargeable battery in which a lithium ion moves between the anode and cathode. The lithium ion moves from the anode to the cathode during discharge and from the cathode to the anode when charging.

Lithium ion batteries are commonly used in consumer electronics. They are currently one of the most popular types of battery for portable electronics, with one of the best energy-to-weight ratios, no memory effect, and a slow loss of charge when not in use. In addition to uses for consumer electronics, lithium-ion batteries are growing in popularity for defense, automotive, and aerospace applications due to their high energy density. However certain kinds of mistreatment may cause Li-ion batteries to explode.

The three primary functional components of a lithium ion battery are the anode, cathode, and electrolyte, for which a variety of materials may be used. Commercially, the most popular material for the anode is graphite. The cathode is generally one of three materials: a layered oxide, such as lithium cobalt oxide, one based on a polyanion, such as lithium iron phosphate, or a spinel, such as lithium manganese oxide, although materials such as TiS2 (titanium disulfide) were originally used.[3] Depending on the choice of material for the anode, cathode, and electrolyte the voltage, capacity, life, and safety of a lithium ion battery can change dramatically. Lithium ion batteries are not to be confused with lithium batteries, the key difference being that lithium batteries are primary batteries containing metallic lithium while lithium-ion batteries are secondary batteries containing an intercalation anode material.

Li-Ion Battery Buying Guide
Rechargeable Lithium-Ion batteries are also known as secondary lithium batteries. Unlike its cousin primary lithium batteries, secondary lithium batteries typically have a cycle life of up to 500 uses, meaning it can be fully drained and recharged back to 100% of the original capacity up to 500 times. Always verify the cells inside the battery pack, as the longevity and the retention capability of lithium cells vary greatly based on the cell manufacturer.