{"product_id":"xact-communication-wristlinx-x3x-replacement-battery-37v-550mah-li-ion","title":"Xact Communication XB10 Wristlinx x3x Replacement Battery 3.7V 550mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eXact Communication Wristlinx x3x Series — 3.7V Li-ion Replacement Battery (XB10)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 550mAh Li-ion replacement for the XB10 battery pack. It fits the Wristlinx x3x wrist-mounted two-way radio and powers both the transmitter and receiver circuits. The same pack also fits the Wristlinx x2x, x33xif-2, and x33xif variants.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWristlinx x-series compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, XB10 connector pinout, and BMS handshake protocol — one pack covers the full lineup.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the XB10 pack through full charge and discharge cycles on the Wristlinx platform. The BMS handled PTT transmit spikes without tripping into overcurrent lockout, and the protection circuit responded correctly at low-voltage cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst insertion on the Wristlinx dock:\u003c\/strong\u003e\n    If the charger shows a fault indication on first insertion, remove the pack, wipe the contact pads with a dry cloth, and reseat firmly. The Wristlinx dock requires a clean contact cycle to complete the BMS handshake before it begins 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 Wristlinx x3x cuts out mid-transmission on a new XB10\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA new XB10 ships at storage voltage — typically around 3.6V — not a full 4.2V charge. When PTT is pressed, the transmitter draws a sharp current spike that briefly drops cell voltage below the BMS cutoff threshold. The radio interprets that voltage sag as a depleted pack and kills the transmit circuit. Charge the pack fully before the first use to bring the cell above 4.1V and eliminate this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBar indicator showing one fewer bar than expected after inserting a new XB10\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Wristlinx uses a simple voltage-threshold bar indicator — each bar maps to a specific cell voltage band. A new pack at storage voltage sits in the second or third bar band, not the top. This is not a capacity fault; the cell is healthy but not fully charged. Put the pack on the dock until the charge indicator clears, and the bar display will read the correct level at or above 4.1V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426364981338,"sku":"BWCS-CXB10TW-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426365014106,"sku":"BWCS-CXB10TW-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426365046874,"sku":"BWCS-CXB10TW-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CXB10TW-1.webp?v=1779930808","url":"https:\/\/batteryweb.com\/products\/xact-communication-wristlinx-x3x-replacement-battery-37v-550mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}