Heavy-duty 36 V backpack Li-Ion battery, 31.1 Ah and 1,119.6 Wh, for maximum professional runtime. Includes battery only, not harness.
Compatible: 520iRX, 535iRXT, 525iRXT, 520iLX, 525iLK/LXT, 520iHE3/HT4, 522iHD60/75/HDR60, 525iHE3, 525iB Mark II, 550iBTX, 530iB, 530iPT5/P4/PX with required adapter/harness accessories.
Older battery note: BLi550X/BLi950X are earlier backpack family references; verify adapter and machine compatibility.
Specs: 36 V | 31.1 Ah | 1,119.6 Wh | Li-Ion.