Milwaukee M18™ REDLITHIUM™ XC5.0 Extended Capacity Batteries, 2-Pack delivers up to 2.5 times more run-time, 20% more power, and twice the life d to standard lithium-ion battery packs. These advanced batteries are designed to withstand harsh environments by effectively routing water away from the electronics, ensuring durability and reliability. They help extend run-time and battery life by reducing heat buildup and preventing damage from vibration or drops. Built to perform in extreme cold weather conditions down to -0°F (-18°C), these batteries feature Milwaukee’s REDLINK Intelligence technology, which protects against overloading and prevents damage to cordless tools during heavy-duty use. The packs also include discharge protection to safeguard the battery cells. Compatible with Milwaukee’s extensive line of over 60 M18 cordless tools, upgrading to the M18 REDLITHIUM XC 5.0 Extended Capacity Batteries means more work per charge, longer battery life, and enhanced durability for your cordless tool applications. Model Number: 48-11-1852