HUSQVARNA MC CULLOCH GARDENA Compatible Battery for HUSQVARNA MC CULLOCH GARDENA Lawnmower Robots For Models: 320 330X 420 520 Dimensions in mm: Length: 146.2 mm Width: 67.6 mm Height: 38.8 mm Capacity: 4 Ah Voltage: 18 V Part No.: AG6201004 Original Part No.: 588146401 589 58 52-01 SS