Image Item No. Description  4757  Electric Plate 2 x 4 with Contacts Catalog: Parts: Electric  55422c01  Electric Rechargeable Battery 7.3V Large - SPIKE Prime Catalog: Parts: Electric  63792c01  Electric Rechargeable Battery 7.3V Small - SPIKE Prime Catalog: Parts: Electric  2980c01  Electric Sensor, Temperature with Short Lead Catalog: Parts: Electric  2974c01  Electric Sensor, Touch with Non-Removable Lead Catalog: Parts: Electric  32467  Electric Speed Computer Catalog: Parts: Electric