USB-C CHARGING: For fast and flexible charging CONTINUOUS CHARGING: Allows the laser to be used while powering up RUBBER SEALED CONNECTION: For added safeguarding BOSCH MEASURING AND LAYOUT TOOLS ARE COVERED BY A ONE YEAR LIMITED WARRANTY WITH AN ADDITIONAL YEAR WHEN YOU REGISTER YOUR TOOL WITHIN EIGHT WEEKS OF PURCHASE - FOR DETAILS, VISIT BOSCH TOOLS COMPATABILITY: This battery is only compatible with these Bosch lasers: GLL100-42GL, GCL165-42GL, GLL300-42GL. Please check your owners manual for more details.