Replacement battery fits 7 MyGenie compatible models. Specifications: 2600mAh, 14.4V, Li-ion. Compatible with: Airrobo P20, ZX1000 Robotic Vacumm Cleaner, Rotational ZJ-MA8, Rotational ZJ-MA17, Rotational ZJ-MA21, Rotational TZJ-MA221 and 1 more compatible models. Replaces: Airrobo 91069, Rotational EX-3742-00. MyGenie replacement battery designed for Vacuum devices.