{"product_id":"texas-instruments-ti-navigator-replacement-battery-37v-5200mah-li-ion","title":"Texas Instruments 3.6L43BPA TI-Navigator Compatible Battery 3.7V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTexas Instruments TI-Navigator — 3.7V Li-ion Replacement Battery (3.6L43BPA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 5200mAh Li-ion battery for the Texas Instruments TI-Navigator wireless classroom system. It fits the handheld access point devices that connect students and teachers during live assessments and data collection sessions. The OEM part number is 3.6L43BPA.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTI-Navigator handheld access points:\u003c\/strong\u003e\n    These units share a single battery platform across the Navigator hub ecosystem — same voltage rail, same connector pinout, and the same BMS handshake protocol that the base station uses to verify pack state before enabling wireless transmission.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through Navigator hub pairing sequences and monitored BMS response during wireless sync bursts. The protection circuit held stable across repeated connection events without triggering low-voltage cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-session calibration tip:\u003c\/strong\u003e\n    After fitting this battery, run a full class session or at least one complete activity cycle before relying on the charge indicator. The TI-Navigator maps battery state against actual load during use, and skipping this step causes premature low-battery warnings to fire during your first real lesson.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the TI-Navigator hub drops its wireless link mid-session\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the hub polls multiple student handhelds simultaneously, the radio module draws a short current burst that a degraded or partially discharged cell cannot sustain. The BMS reads this spike as an unsafe discharge event and cuts output to protect the cell. A new pack with a full charge handles these polling bursts without interruption. If drop-outs persist after fitting a fresh battery, check that the hub firmware is current — older firmware versions poll at higher burst rates than necessary.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTI-Navigator shows a charged indicator but shuts off when USB data transfer starts\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eUSB data transfer to a PC adds a combined load — radio, processor, and USB controller all active at once — that can exceed what a worn cell delivers even when the display shows a healthy percentage. The voltage sag under that combined draw crosses the BMS cutoff threshold before the indicator catches up. Fit the replacement pack and initiate a full transfer immediately after a complete charge cycle. Confirm the pack is reading at or above 4.1V before starting any USB sync session.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360435372122,"sku":"BWCS-TEX360SL-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360435404890,"sku":"BWCS-TEX360SL-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360435437658,"sku":"BWCS-TEX360SL-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TEX360SL-1.webp?v=1778614760","url":"https:\/\/batteryweb.com\/products\/texas-instruments-ti-navigator-replacement-battery-37v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}