The M18™ 5.0 Ah Battery delivers up to 2.5× more runtime, 20% more power, and up to 2× longer battery life compared with other lithium-ion technologies or previous MILWAUKEE® batteries, depending on the tool and application. Featuring REDLITHIUM™ protection with REDLINK™ digital overload protection, it helps prevent damage in demanding conditions, while individual cell monitoring ensures optimal charge and discharge. Its durable metal frame, shock-responsive separators, and water-routing design protect internal electronics, and it operates reliably in temperatures down to –20 °C. An onboard fuel gauge helps maximise runtime efficiency on the jobsite.