A charger for a lithium battery is a device designed to supply the necessary electrical current to recharge a lithium-ion battery. These chargers are specifically engineered to work with the charging characteristics of lithium batteries, which require specific current and voltage for safe and efficient charging. In addition to supplying the required power, lithium battery chargers often incorporate protection circuits to prevent overcharging, overheating, and other conditions that could damage the battery or pose a safety risk.