An electronic battery, also called a rechargeable battery, is a type of battery that can be recharged by passing an electrical current through it. They are typically composed of one or more electrochemical cells, which convert stored chemical energy into electrical energy. Common types of rechargeable batteries include NiMH (Nickel Metal Hydride), Li-ion (Lithium-Ion) and lead-acid. Electronic batteries are often used in consumer electronics, such as laptops, cell phones and digital cameras, as well as electric vehicles and power tools. They have a higher energy density than non-rechargeable batteries, making them more efficient and cost-effective than their disposable counterparts.