{"product_id":"palm-tungsten-tx-replacement-battery-37v-1250mah-li-polymer","title":"Palm Tungsten TX Replacement Battery 3.7V 1250mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePalm Tungsten TX — 3.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1250mAh Li-Polymer cell replaces the original battery in the Palm Tungsten TX PDA. The Tungsten TX is a mid-2000s Palm OS handheld used for contacts, calendar, email, and third-party applications. When the original cell degrades and the device can no longer hold a charge, this battery restores normal operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTungsten TX platform fit:\u003c\/strong\u003e\n    The Tungsten TX uses a compact Li-Polymer cell at 3.7V nominal. This replacement matches the original cell's voltage rail and physical footprint — 60.20 x 36.50 x 5.00mm — so the connector seats correctly against the board.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the Tungsten TX mainboard. The BMS accepted charge from a standard Palm cradle without fault flags, and voltage held steady under screen-on load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRAM power and data sync before removal:\u003c\/strong\u003e\n    The Tungsten TX stores open application state and unsaved data in volatile SRAM powered directly by the main battery. Perform a full HotSync to your host computer before removing the old cell — any data not written to flash storage at the moment of power loss is gone permanently.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Tungsten TX fails to boot after a new battery is installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Tungsten TX boot ROM checks for a minimum voltage threshold before launching Palm OS. A new Li-Polymer cell shipped in storage state often sits at 3.0V or below — below the threshold the device needs to begin the boot sequence. The device will show a blank screen or a low-battery icon and refuse to proceed. Charge the battery in the cradle or via USB for at least 30 minutes before pressing the power button for the first time.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTungsten TX showing full charge but resetting unexpectedly under load\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis symptom points to a degraded cell that can no longer sustain voltage when the backlight and processor peak simultaneously. The battery gauge on Palm OS reads resting voltage, not load voltage — so it reports 100% even when the cell sags under draw. With a fresh 1250mAh Li-Polymer cell, resting voltage after a full charge should read 4.1–4.2V at the test points on the connector. If unexpected resets continue after swapping the battery, check that the connector is fully seated — an intermittent contact produces the same symptom.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415956127834,"sku":"BWCS-PMTXXL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415956160602,"sku":"BWCS-PMTXXL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415956193370,"sku":"BWCS-PMTXXL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PMTXXL-1.webp?v=1779758481","url":"https:\/\/batteryweb.com\/products\/palm-tungsten-tx-replacement-battery-37v-1250mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}