Motorola Astro & Astro Saber, Nicad (Instrinsically Safe Low Capacity), NTN4538D Quantity in Basket: None Code: NTN4538DR Price: $78.60 Shipping Weight: 3.00 pounds Quantity: Motorola NTN4538DR, Intrinsically Safe Nicad 1100 Mah, 7.5v. For Saber, Astro Saber.