m12 12-volt lithium-ion compact battery pack 1.5ah

This Milwaukee battery is 65% lighter and 50% smaller than a compact NiCd battery, yet delivers long run time and fade-free power. This REDLITHIUM battery was designed with superior pack construction, technology and performance to get optimal work per charge and work over pack life. Use this 16-watt-hour battery to power your Milwaukee M12 cordless power tools.