The MILWAUKEE® M18™ REDLITHIUM™ HIGH OUTPUT™ CP3.0 Starter Kit provides 50% more power and runs 50% cooler vs M18™ REDLITHIUM™ CP battery packs. This increased performance results in the same power and run time of a M18™ REDLITHIUM™ XC extended capacity battery in a lighter and more compact package. The 18-volt battery pack delivers fade-free power and runs substantially cooler through heavy applications， allowing trade professionals to push their cordless tools throughout a wide application range. The REDLITHIUM™ HIGH OUTPUT™ CP3.0 battery is fully compatible with all 175+ Milwaukee M18™ solutions. The M18™ & M12™ Multi-Voltage Charger accepts all M18™ and M12™ batteries， so you’ll always be prepared and productive， especially on jobs that require a mix of M12™ and M18™ Milwaukee cordless power tools. The charger communicates directly with the battery pack to monitor cell voltage， temperature and charge status to ensure a full charge. As an added level of communication， the charger indicates when the lithium-ion battery reaches an 80% charge， providing confidence that the battery can complete a substantial amount of work without waiting for a full charge.