&lt;b&gt;ET5X 4-Slot Battery Charge f / Optional battery PowerPack&lt;/b&gt;&lt;br /&gt;&lt;br /&gt;Drop in 4-Slot Battery charger with LEDs to indicate Charge State&lt;br /&gt;&lt;br /&gt;Can be docked in 4-slot Cradle via adapter cup (requires its own battery charger power supply)&lt;br /&gt;&lt;br /&gt;Can be used as a standalone charger requiring its own Power Supply and AC Line Cord