HP 2110-0030M - Fuse - 5A, 250V max - .25in dia. x 1.25in long, glass body - Fuse - 5A, 250V - For battery pack - In HP-PB I/O card cage Retail
HP 1420-0656 - 6V battery - 6.5Ah, sealed, lead acid battery - Includes 5A, 250V slow-blow fuse and cable - Mounts in HP-PB I/O card cage Retail