Trimble TDL 450 Radio Battery Kit The Trimble TDL 450 Radio Battery Kit (P/N 56657-00) is a complete external power solution designed for Trimble TDL 450 UHF radios . Featuring a 12 V, 35 Ah deep-discharge field battery , this kit provides reliable, long-lasting power for demanding surveying, GNSS base station, and machine control applications. Housed in a durable nylon battery pouch, the kit includes two connected fused SAE battery cables for convenient field deployment and dependable operation throughout the workday. Key Features 12 V, 35 Ah deep-discharge field battery delivers extended operating time for compatible UHF radios. Includes durable nylon battery pouch for convenient transport and field protection. Includes two connected fused SAE battery cables for reliable power delivery and added circuit protection. Ideal for GNSS base stations and long-duration field deployments. Genuine Trimble accessory engineered for dependable field performance. What's Included 12 V, 35 Ah deep-discharge battery in nylon battery pouch Two connected fused battery cables with SAE connectors Compatible With Trimble UHF Radios: TDL 450B, TDL 450Hx, TDL 450H Spectra Geospatial UHF Radios: ADL 450B Pacific Crest UHF Radios: ADL Vantage 35,   ADL Vantage Pro