{"product_id":"raymarine-micronet-wind-transmitter-replacement-battery-3v-200mah-li-mno2","title":"Raymarine TA125 Micronet Wind Transmitter 3V Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRaymarine Micronet Wind Transmitter — 3V Li-MnO2 Replacement Battery (TA125)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V, 200mAh lithium-manganese dioxide cell that fits the Raymarine Micronet Wind Transmitter across the T120 and T125 models. The wind transmitter mounts on the mast and sends live wind speed and direction data wirelessly to Raymarine displays and chartplotters. When this cell depletes, the transmitter stops broadcasting — your chart plotter loses wind data entirely.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT120 and T125 compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay geometry, 3V nominal voltage requirement, and wireless transmission circuit. The flat form factor at 53.00 x 24.80 x 3.40mm fits the sealed compartment without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell against the transmitter's low-voltage cutoff threshold. The BMS held transmission above 2.7V and dropped the output cleanly below 2.5V with no erratic behaviour before cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMast-mount temperature exposure:\u003c\/strong\u003e\n    Li-MnO2 chemistry handles the wide temperature swings at mast height better than alkaline cells. If the transmitter has been dark in a hot, sealed compartment all season, discharge the residual voltage reading before trusting the first wind data after replacement.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Micronet Wind Transmitter goes silent before the battery fully depletes\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe T125 transmitter has a low-voltage lockout that cuts wireless transmission before the cell reaches absolute zero — this protects the internal oscillator circuit from corruption. That means the unit can appear dead with measurable voltage still on the cell. If your chartplotter shows no wind input and the transmitter LED has stopped blinking, the cell is likely below 2.6V, which is the effective cutoff for sustained RF output. Swap the cell even if a multimeter shows 2.7V or above — load voltage under transmission duty drops that reading quickly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWind data drops intermittently then disappears entirely\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIntermittent signal loss before full failure is the most common symptom of a cell in its final discharge stage. Under the pulse load of each wireless transmission, a weakening Li-MnO2 cell sags below the oscillator's minimum voltage, the packet is lost, and the display shows dashes. The cell recovers slightly between pulses, which is why the data comes back briefly. Replace the cell and confirm the transmitter LED is blinking at its normal interval — typically once every few seconds at rest.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415963402330,"sku":"BWCS-RYT125SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415963435098,"sku":"BWCS-RYT125SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415963467866,"sku":"BWCS-RYT125SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RYT125SL-1.webp?v=1779758652","url":"https:\/\/batteryweb.com\/products\/raymarine-micronet-wind-transmitter-replacement-battery-3v-200mah-li-mno2","provider":"BatteryWeb","version":"1.0","type":"link"}