{"product_id":"yaesu-vx-351-replacement-battery-74v-2200mah-li-ion","title":"Yaesu FNB-V130LI VX-351 Replacement Battery 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eYaesu VX-351 \/ VX-354 \/ VX-359 — 7.4V Li-ion Replacement Battery (FNB-V130LI)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2200mAh Li-ion battery replacing the Yaesu FNB-V130LI in the VX-351, VX-354, and VX-359 portable transceivers. These are compact land mobile radios used in field operations, emergency communications, and amateur radio. Voltage and cell count match the original pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVX-351 \/ VX-354 \/ VX-359 platform fit:\u003c\/strong\u003e\n    All three models share the same battery bay dimensions, contact pin layout, and 7.4V two-cell BMS handshake. One pack covers the full VX-35x series without modification or adapter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full charge and discharge cycles on a VX-351. The BMS accepted the charger dock handshake on first insertion and held voltage within spec across sustained PTT cycles without tripping overcurrent protection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-insertion contact check:\u003c\/strong\u003e\n    If the Yaesu charger dock shows a fault LED after inserting this pack for the first time, remove the battery and wipe the gold contact strip with a dry cloth before reseating. The dock requires a clean contact surface to complete the BMS handshake before it will begin charging.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the VX-351 cuts out mid-transmission on a new FNB-V130LI\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion cell ships at storage voltage — typically around 3.7V per cell, or roughly 7.4V total — not at full charge. When you key up on a fresh-from-the-box pack, the transmit current draw can pull cell voltage below the BMS cutoff threshold before a full charge cycle has been completed. The radio interprets this as a depleted pack and drops output or shuts down. Charge the battery fully in the dock before first transmission use — the BMS needs the cells topped to 8.4V to handle the TX current spike without tripping.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe VX-351 reads battery level using voltage thresholds, not a fuel gauge chip. A new pack at storage voltage sits below the top threshold, so the radio displays one or two bars even though the cells are not depleted. This is not a fault with the battery or the radio. Put the pack through one complete charge cycle in the dock until the charge LED goes green, then reinsert — the indicator will reflect the correct level once cell voltage reaches 8.4V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426332901466,"sku":"BWCS-FNB13TW-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426332934234,"sku":"BWCS-FNB13TW-2","price":44.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426332967002,"sku":"BWCS-FNB13TW-3","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FNB13TW-1.webp?v=1779930720","url":"https:\/\/batteryweb.com\/products\/yaesu-vx-351-replacement-battery-74v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}