{"product_id":"alcatel-lucent-3mg08009aa-replacement-battery-37v-320mah-li-polymer","title":"Alcatel-Lucent 3MG08009AA Cordless Phone Replacement Battery 3.7V 320mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlcatel-Lucent 3MG08009AA \/ Wide Band 4.1 Bluetooth — 3.7V Li-Polymer Replacement Battery (GSP04253501A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 320mAh Li-Polymer battery replaces the GSP04253501A in the Alcatel-Lucent 3MG08009AA and Wide Band 4.1 Bluetooth cordless handsets. At 37.00 x 25.00 x 4.60mm, it fits the original battery compartment without modification. Capacity matches the OEM spec at 320mAh (1.18Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3MG08009AA and Wide Band 4.1 platform:\u003c\/strong\u003e\n    Both handsets share the same 3.7V single-cell Li-Polymer rail, connector pinout, and BMS handshake — one battery covers both. The BMS monitors cell voltage directly; no firmware pairing is required between battery and base station.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran charge and discharge cycles on this cell and confirmed BMS cutoff at the correct low-voltage threshold. The protection circuit tripped cleanly at the expected floor, with no false overcharge flags during the charge phase.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle charging on Li-Polymer cordless handsets:\u003c\/strong\u003e\n    After installing this battery, seat the handset in the base and allow a full uninterrupted charge before first use. Li-Polymer cells in low-current cordless chargers can take longer than NiMH equivalents to reach rated capacity on the first cycle — pulling the handset early shortens that first charge.\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 original battery after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-Polymer cell ships partially discharged for transport safety — typically at 40–60% state of charge. If you use the handset before completing a full charge cycle, available capacity is lower than rated. The BMS also needs one or two full charge-discharge cycles to calibrate its voltage-to-capacity curve accurately. Run two complete cycles — full charge, use until the handset signals low battery, full charge again — before judging talk time.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset not pairing or re-registering after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome DECT handsets lose their base station registration when power is fully removed during a battery change. The handset stores pairing data in volatile memory on certain Alcatel-Lucent models, and a cold swap clears it. Re-registration is done from the handset menu under Settings → Register Handset, or by holding the Find\/Page button on the base for five seconds until the base enters pairing mode. Check your handset manual for the exact sequence — the process takes under two minutes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339864571994,"sku":"BWCS-ALM080CL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339864604762,"sku":"BWCS-ALM080CL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339864637530,"sku":"BWCS-ALM080CL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ALM080CL-1.webp?v=1778366843","url":"https:\/\/batteryweb.com\/products\/alcatel-lucent-3mg08009aa-replacement-battery-37v-320mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}