Battery Compatibility: High-performance 14.4V Lithium-Ion battery specifically designed for Max rebar tying tools including RB217, RB218, RB397, RB398, RB441T, RB517, RB518, RB441T, RB611T, RB401T-E, and PJID143 models Power Capacity: Robust 5.0Ah battery capacity ensures extended runtime for demanding construction and rebar tying applications Quick Charging: Superior charging efficiency with complete battery recharge in just 40 minutes, minimizing downtime on the job site Charge Indicator: Convenient built-in charge level indicator located on the housing allows for easy monitoring of remaining battery power Direct Replacement: Perfect replacement solution for JPL91440A battery, maintaining full compatibility and performance with supported Max tools 14.4V Li-ion (Lithium Ion) 5.0Ah battery pack compatible with Max RB217, RB218, RB397, RB398, RB441T, RB517, RB518, RB441T, RB611T, RB401T-E, and PJID143 tool models. Features 40-minute complete charging time and built-in charge indicator on the side of the housing for easy battery level monitoring.