The Bosch BC660 18-Volt Lithium-Ion Battery Charger is designed to quickly, safely and efficiently charge all Bosch 18-Volt Lithium-Ion batteries and tools. With Bosch exclusive engineering, this charger can charge or discharge without damaging the batteries or shortening their storage capacity or reducing its service life. Interrupting the charging procedure does not damage the battery. Get it today as an extra charger or as a replacement and always have the battery charged and the power you need on hand.