Milwaukee 48-11-1820 M18 REDLITHIUM 2.0 Compact Battery Pack – Up to 2X Runtime

Upgrade to REDLITHIUM 2.0 for your M18 tools

The Milwaukee 48-11-1820 M18 REDLITHIUM 2.0 Compact Battery Pack is built to deliver more work per charge and more work over the pack’s life. With 2.0 amp-hours of runtime, it provides up to twice the operating time of standard lithium-ion packs and 20% more power when you need it most. Its lightweight, compact form slips into tight spaces and reduces user fatigue on long jobs.

Designed for real jobsite conditions, this battery runs cooler and maintains performance even in extreme temperatures, including climates below 0°F (-18°C). The on-board fuel gauge helps you plan downtime and tool swaps, so you can stay productive without guessing how much charge remains.

Smart protection and long-term reliability

REDLITHIUM is managed by Milwaukee’s exclusive REDLINK Intelligence, which enables optimized performance and overload protection through system-wide communication between tool, battery, and charger. The pack also includes discharge protection to guard cells and a temperature management system that helps maximize life. A durable construction supports all-weather, fade-free power on the jobsite.

Versatility and durability for a growing toolset

This compact battery powers more than 40 Milwaukee M18 cordless tools, so you can upgrade your toolkit with one reliable, compact cell while preserving tool balance and weight. All-weather performance means you can rely on steady output as you move between indoor, outdoor, and variable jobsite conditions.

• REDLINK Intelligence for optimized performance and overload protection
• Fuel gauge onboard for quick runtime estimates
• 2.0 amp-hours of runtime with 2X the charge cycles vs standard packs
• All-weather, cooler operation in extreme temperatures
• Compact, lightweight design to reduce fatigue

• Supports 40+ Milwaukee M18 tools, adding versatility to your setup
• Discharge protection to safeguard cells and extend life
• Temperature management and individual cell monitoring for longevity
• Smooth performance in cold climates down to -0°F / -18°C