{"product_id":"belkin-wifi-skype-phone-replacement-battery-37v-1050mah-li-ion","title":"Belkin W0001 WiFi Skype Phone Replacement Battery 3.7V 1050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBelkin WiFi Skype Phone (W0001) — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1050mAh Li-ion battery replaces the internal cell in the Belkin WiFi Skype Phone. It fits models W0001, F1PP000GN-SK, WSKP100, and the general WiFi Phone variant. Capacity is sourced from the product specification — 3.89Wh total.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatible models — W0001, F1PP000GN-SK, WSKP100:\u003c\/strong\u003e\n    These units share the same 3.7V single-cell architecture and physical connector. The battery management system expects a standard Li-ion charge curve, so no firmware configuration is needed after swapping the cell.\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 a VoIP phone platform. The BMS accepted the cell without error flags, and the charging circuit stepped down correctly at full capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle charge protocol for WiFi VoIP phones:\u003c\/strong\u003e\n    After installing, power cycle the phone and leave it on charge for at least four hours before testing standby or backup function. The phone's backup circuit will not activate until the cell reaches its charge threshold — testing before that point gives a false low-battery result.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Belkin WiFi Phone drops VoIP calls when mains power flickers\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe W0001 uses the internal battery as a bridge during brief power interruptions. If the cell is depleted or freshly installed without a full charge cycle, the phone cannot sustain the WiFi radio during even a short dropout. The result is a dropped call — not a slow fade, but an immediate disconnect. A fully charged cell holds the phone online through short outages without any call interruption.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone shows low battery warning immediately after installing a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because replacement cells ship in a storage state — typically at 30–50% charge. The phone reads the cell voltage on startup and triggers a low-battery flag if it sits below the firmware threshold, usually around 3.5V. This is not a fault with the battery. Connect the phone to mains power and let it charge uninterrupted until the indicator clears, confirming the cell has reached at least 4.1V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428090806362,"sku":"BWCS-BKW001SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428090839130,"sku":"BWCS-BKW001SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428090871898,"sku":"BWCS-BKW001SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BKW001SL-1.webp?v=1779934014","url":"https:\/\/batteryweb.com\/products\/belkin-wifi-skype-phone-replacement-battery-37v-1050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}