M12 FUEL™ takes 12-Volt technology to the next level of performance.  Milwaukee® M12 FUEL™ features a POWERSTATE™ Brushless Motor, REDLINK PLUS™ Electronic Intelligence and REDLITHIUM™ Battery Technology, resulting in longer motor life, more run time and more power. The POWERSTATE™ brushless motor works harder and lives longer than all leading competitors, while

reducing noise and cooling more rapidly to deliver years of maintenance-free performance. The M12™ REDLITHIUM™  XC4.0  Battery provides up to 4X more runtime than standard Lithium-Ion batteries. REDLINK PLUS™ Intelligence hardware and software is the world’s most advanced system of cordless power tool electronics that will maximize performance and protect your investment.