{"product_id":"denon-ah-gc30-replacement-battery-37v-650mah-li-polymer","title":"Denon AH-GC30 Compatible Battery 3.7V 650mAh PT403648","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDenon AH-GC30 — 3.7V Li-Polymer Replacement Battery (PT403648)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 650mAh Li-Polymer replacement battery for the Denon AH-GC30 wireless noise-cancelling headphones. Part number PT403648 matches the original cell dimensions (49.50 x 36.00 x 4.00mm) and connector. It restores wireless audio and active noise cancellation when the original cell has degraded or failed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAH-GC30 fit:\u003c\/strong\u003e\n    The AH-GC30 runs both its DECT radio and ANC circuit from a single Li-Polymer cell. Voltage, connector pinout, and BMS communication must match the original — PT403648 meets all three requirements for this model.\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 AH-GC30 platform. The BMS accepted the pack without error flags, and the ANC circuit drew current cleanly alongside the wireless radio at combined load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for the AH-GC30:\u003c\/strong\u003e\n    Place the headset in the base station and run a complete charge cycle before use. The AH-GC30 base needs to log the new cell before its talk-time estimate reflects actual capacity — skipping this step causes the indicator to read short.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the AH-GC30 cuts out mid-call on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe AH-GC30 pulls current from one cell for both the DECT radio and the ANC processor simultaneously. Under that combined draw, a cell not yet conditioned can sag below the BMS cutoff threshold — triggering a shutdown that looks like a wireless drop. This is not a pairing fault. The fix is three to five full charge-discharge cycles, which allows the cell to reach rated capacity and hold voltage under combined load without sagging.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station shows full charge but headset cuts off after short use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA replacement cell ships at storage voltage — typically around 3.6–3.8V — not at a fully conditioned state. The base station can read this as \"charged\" and stop the charge cycle early. The headset then cuts off quickly because the cell never received a proper full charge. To fix this, leave the headset docked for a full uninterrupted charge cycle — at least two hours — before use, confirming the indicator shows a complete charge at 4.2V before removing it.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428106240090,"sku":"BWCS-DGC300SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428106272858,"sku":"BWCS-DGC300SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428106305626,"sku":"BWCS-DGC300SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DGC300SL-1.webp?v=1779934117","url":"https:\/\/batteryweb.com\/products\/denon-ah-gc30-replacement-battery-37v-650mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}