{"product_id":"binatone-idect-x2i-replacement-battery-37v-500mah-li-polymer","title":"Binatone iDect X2i Replacement Battery 3.7V 500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBinatone iDect X2i Series — 3.7V Li-Polymer Replacement Battery (MT LP053040)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 500mAh Li-Polymer cell replaces the MT LP053040 battery in the Binatone iDect X2i, iDect X2i Single, and iDect X2i Twin cordless handsets. It matches the original cell's dimensions (41.90 × 29.24 × 5.07mm), voltage, and connector. Fit this when the handset no longer holds a useful charge or stops powering on entirely.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiDect X2i handset family:\u003c\/strong\u003e\n    The Single and Twin variants use the same slim Li-Polymer cell on the same 3.7V rail with the same connector orientation. One part number covers all three — no wiring modification needed.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the X2i handset. The protection circuit tripped correctly at low-voltage cutoff and accepted a full charge without overtemperature events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge after installation:\u003c\/strong\u003e\n    Li-Polymer cells in DECT handsets ship at storage charge, not full capacity. Seat the handset in the base immediately after fitting and leave it for a full charge cycle before making calls — this lets the cell reach its rated 500mAh capacity from the outset.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the iDect X2i loses range when the battery ages\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDECT transmit power depends on stable voltage from the cell. As a Li-Polymer cell ages, internal resistance rises and voltage sags under the RF transmit load — even if the handset idles fine on the base. The radio drops power to compensate, which shortens effective range before the battery reads as low. Fitting a fresh cell with lower internal resistance restores the voltage headroom the transmitter needs.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset not pairing with base after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the old battery cuts all power to the handset, and some iDect DECT handsets lose their base pairing when power is fully interrupted. The fix is a manual re-registration: hold the handset's paging or registration button, then trigger registration from the base station menu. Consult the base station label — the default PIN is usually 0000. Once paired, the handset reconnects and operates normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339993808986,"sku":"BWCS-BCP75CL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339993841754,"sku":"BWCS-BCP75CL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339993874522,"sku":"BWCS-BCP75CL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BCP75CL-1.webp?v=1778366983","url":"https:\/\/batteryweb.com\/products\/binatone-idect-x2i-replacement-battery-37v-500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}