Irobot Roomba 520 de segunda mano por 90 EUR en Vioño en WALLAPOP
4500+ Super Duration Battery for Roomba 600 605 615 631 632 650 520 521 530 531 749715690310 | eBay
Roomba 900 Series Original Battery (Lithium 3300mAh)
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Baterie pro iRobot Roomba 520 3300 mAh - Kabelmánie.cz
Original Replacement Battery For Irobot Roomba 655 690 595 650 980 780 805 88 860 880 890 655 615 620 960 964 1800li Genuine - Mobile Phone Batteries - AliExpress