Hitech - 2 of FNB-29A Battery 7.2V Ni-MH 1600mAh (Japanese Cells) for Yaesu / Vertex VX-500, VX-510, VX-520U, VX-520UD, VX-530, and Standard HS 582T 2-Way Radios Battery pack is made on-demand and is shipped from Taiwan, ensuring freshness and quality Batteries will take between two and three weeks to arrive after ordering. 100% OEM compatible High-quality Japan Yuasa cells: 7.2V, 1600mAh, Ni-Mh chemistry Battery case is 100% polycarbonate plastic and is ultrasonically sealed for maximum strength 1 year manufacturer limited warranty. See product description for details