MAX JPL91440A 14.4V 5.0Ah Lithium Ion Battery 14.4V Li-ion (Lithium Ion) 5.0Ah battery pack for use with Max RB217, RB218, RB397, RB398, RB441T, RB517, RB518, and PJID143 tool models. Only 40 minutes to charge the battery completely. For use only with Max Re-Bar Tier. Includes built in charge indicator on the side of the housing allowing you to check your charge easily. JPL91450A Charger Compatibility: The JPL91450A works with Max JC914, JC925 and JC928 chargers.