VMAX XTR34-75 12V 75Ah Group 34 AGM Deep Cycle Maintenance Free Battery for Permobil C300 Corpus 3G, Corpus Jr, C300 PS Heavy Duty Deep Cycle 12 Volt 75Ah Group 34 AGM Battery Dimensions: 10.2"w x 6.6"d x 7.2"h 6mm Hex Screws (included) Maintenance free, professional grade AGM deep cycle BCI Group 34 battery