CP-42: 12VDC Power & Charge Cord for Kenwood TH-F6A, TH-F7 radios, etc. Input: 12-13.8VDC. Output: 12-13.8VDC. Coax end plugs into handheld radio (center hole polarity Positive+). Provides power to the radio, and can also slow-charge the attached rechargeable battery (PB-42L, PB-42XL, PB-42LH etc). Has built-in 5A fuse in socket plug.