["Voltage: 14.4V, Capacity: 4800mAh, Cell Type: Ni-MH",
"Compatible with iRobot Roomba 500 600 700 800 R3, 531 555 581 595 620 650 770 780 871 870 880",
"Environmentally friendly Ni-MH battery cells inside, no pollution and convenient to collect when not in use.",
"No memory effect, the battery can be charged or discharged as needed without loss of capacity.",
"30 days money back and friendly customer service"]
