4.4Ah 14.4V Li-ion Replacement Battery for iRobot Roomba

   It fits easily into Roomba cleaner making it the perfect charger as compact as original NIMH battery. • MELASTA patented Li-ion technology.   • Multi-Protect safety system.   Item specifics: Brand Name: melasta Model Number: B2-RO14-LI44 Set Type: Batteries Only Nominal Capacity: 4400mAh Battery Number: 1pcs Type: Li-Ion Replacement Battery: Yes Size: 140*46.5*55mm Voltage: 14.4V Battery Weight: 418g Capacity: 4400mAh Fit: for iRobot Roomba 500 600 700 800 Series Battery type: Li-ion battery Cells: with Japanese Imported Cells Life time: 800 cycles Housing Design: Hard Case Certifited: CE Rohs UN38.3 Rate of self-discharge: 1% per month     compatible with : For iRobot Roomba 500 series :500  510  520  521  525 530  531  532  535  540  550  555  560  562  563  570  580  581  590 For iRobot Roomba 600 series :600  610  625 630 650 For iRobot Roomba 700 series :760  770  780  R3 For iRobot Roomba 800 series :871  880 800 80501,53847243   Features: 1.