Description Reviews B2317 or B2317R Aluminum Mount Kit Features: All Aluminum Light Weight Skeleton Design. This lightweight design lowers the mount’s weight and allows better visibility of the battery and it’s information on the labels. For Carbon Fiber batteries this is the perfect mount to show off the carbon and securely hold it in place. Positive and Negative without Confusion. This mount features stamped “positive” and “negative” markings to allow easy readability and avoid hooking up the battery incorrectly. Racing Required! All forms of racing sanctioning bodies require secure mounting of the battery. This mount is designed to meet and exceed these requirements. Catalog Note: This mount is for the 17 lb battery. We can get you any mount or charger you need. All Braille items are special order.