{"product_id":"compustar-pro-rfx-t2-replacement-battery-37v-150mah-li-polymer","title":"Compustar Pro RFX T2 Replacement Battery 3.7V 150mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCompustar Pro RFX T2 Series — 3.7V Li-Polymer Replacement Battery (JHY442027)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 150mAh Li-Polymer battery for the Compustar Pro RFX T2 wireless remote transmitter. It fits the Pro RFX T2, Pro RFX-P2WT12, RFX-P2WT12-SS, and P2WT11-SS remotes, along with additional models in the same family. When the original cell loses charge capacity, this replacement restores full remote start and keyless entry function.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro RFX platform compatibility:\u003c\/strong\u003e\n    These remotes share the same compact Li-Polymer cell format, 3.7V supply rail, and JHY442027 footprint across the lineup. The BMS on each unit uses the same charge termination logic, so one cell spec covers the full group without modification.\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 Pro RFX platform and confirmed the BMS accepted charge termination cleanly at 4.2V, with no false over-voltage flags or cutoff errors during draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRe-sync after power interruption:\u003c\/strong\u003e\n    Swapping the battery cuts power to the remote's memory. The Pro RFX T2 requires a programming sequence to re-pair with the control module — follow the Compustar sync procedure specific to your installed firmware version before testing range.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRemote start not activating after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery clears the remote's stored pairing data. The control module no longer recognises the transmitter until the sync sequence is completed. On most Compustar Pro RFX installations, this means entering the module's programming mode via the vehicle's ignition cycle and pressing the remote button within the pairing window. Check your installer's configuration sheet for the exact step count — sequence length varies by firmware.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReduced transmission range in the first few uses\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA fresh Li-Polymer cell ships at storage voltage, typically around 3.6V — below the 3.7V nominal operating point. At that voltage, transmit power from the RF module is slightly reduced, which shortens effective range. After two or three full charge cycles, the cell reaches stable operating voltage and range returns to normal. Charge the remote fully before testing range — measure improvement after the second full charge, not the first.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416114004058,"sku":"BWCS-CPW112SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416114036826,"sku":"BWCS-CPW112SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416114069594,"sku":"BWCS-CPW112SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPW112SL-1.webp?v=1779760313","url":"https:\/\/batteryweb.com\/products\/compustar-pro-rfx-t2-replacement-battery-37v-150mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}