VX series Case Size: 6 AA. Compatible for Battery: FNB-V57 FNB-64 FNB-83 FNB-V88 FNB-94. Compatible for Yaesu/Vertex radios HX270 HX370s HX500s HX600s. HX series VX-177 VX-180 VX-180E VX-200 VX-210 VX-210A VX-218 VX-246 VX-270 VX-277 VX-400 VX-410 VX-418 VX-420 VX-428 VX-800v/u VX-900 VX-210.
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