{"product_id":"linkvil-fanvil-w610w-replacement-battery-38v-1200mah-li-polymer","title":"Linkvil BA30 Fanvil W610W Compatible Battery 3.8V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLinkvil Fanvil W610W \/ W611W — 3.8V Li-Polymer Replacement Battery (BA30)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 1200mAh Li-Polymer battery for the Fanvil W610W and W611W portable Wi-Fi IP phone handsets. It replaces OEM part numbers BA30 and YJ563170. If your handset no longer holds charge through a normal workday, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eW610W and W611W compatibility:\u003c\/strong\u003e\n    Both models use the same battery bay dimensions, connector pinout, and BMS handshake protocol. The 3.8V nominal cell voltage matches the charging circuit in both handset variants, so the base station charges this pack without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and discharge on the W610W platform. The BMS responded correctly to the base station's charge current, hit full cutoff voltage without error, and reported state-of-charge accurately on the handset display.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge on the W610W base:\u003c\/strong\u003e\n    Li-Polymer cells arrive partially charged from storage. Seat the handset in the base immediately after installation and leave it for a full uninterrupted charge before the first call. The W610W base uses a trickle-to-fast charge ramp — interrupting this early extends the time to reach rated capacity.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time shorter than expected after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells coming out of storage self-discharge to a partial state. The first one or two cycles will not deliver full rated capacity until the cell has been fully charged and discharged. The W610W's battery gauge can also misread capacity on a fresh cell until it completes a calibration cycle. Run two or three full charge-to-discharge cycles and gauge accuracy will stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset loses DECT pairing after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the battery cuts all power to the W610W's volatile memory, which stores the DECT pairing key. When the new battery goes in, the handset boots without a registered base. To re-pair, hold the handset registration button on the base station, then navigate to the handset menu under Settings → Register. The handset should find the base within 60 seconds and restore normal operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339864473690,"sku":"BWCS-LVF611CL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339864506458,"sku":"BWCS-LVF611CL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339864539226,"sku":"BWCS-LVF611CL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LVF611CL_1.webp?v=1778366873","url":"https:\/\/batteryweb.com\/products\/linkvil-fanvil-w610w-replacement-battery-38v-1200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}