The Max 14.4V Lithium-Ion 4.0 Ah Battery (JPL91440A) is designed for use with Max Cordless Rebar Tying Tools RB217, RB218, RB397, RB398, RB441T, RB517, RB518, and PJID143. It recharges completely in only 40 minutes and features a built-in charge indicator. This battery delivers approximately 2,000 ties per charge when used with Max Re-Bar Tier. Compatible with Max JC914, JC925 and JC928 chargers.