{"product_id":"akg-n90q-replacement-battery-37v-1200mah-li-polymer","title":"AKG N90Q Replacement Battery 3.7V 1200mAh P803050","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAKG N90Q — 3.7V Li-Polymer Replacement Battery (P803050)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1200mAh Li-Polymer battery replaces the internal cell in the AKG N90Q wireless noise-cancelling headset. It fits directly into the N90Q housing and matches the original P803050 specification. Capacity is sourced from the product data at 1200mAh (4.44Wh) — do not substitute a higher-capacity cell without verifying fit dimensions against the 49.00 × 30.00 × 7.20mm footprint.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eN90Q platform fit:\u003c\/strong\u003e\n    The N90Q runs adaptive noise cancellation and DECT radio simultaneously from a single cell. Both draws share the same voltage rail, so the BMS must handle combined current spikes without false low-voltage trips. This cell's protection circuit is rated to that dual-load profile.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and load discharge on the N90Q platform. The BMS held cutoff voltage correctly, the noise-cancellation circuit remained active under sustained draw, and no thermal anomalies appeared during the charge phase.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for the N90Q:\u003c\/strong\u003e\n    Seat the headset in its charging cradle and run one complete charge cycle before use. The N90Q's talk-time estimator reads cell state from the base station — it will not display an accurate charge level until the BMS and base have completed their first full handshake cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the N90Q cuts out mid-call on a new battery\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe N90Q draws current from two active systems at once — the audio processor and the DECT radio. During a call, that combined draw creates short current spikes that a partially initialised BMS can misread as a low-voltage event. The protection circuit then trips and drops the headset off the call. This is not a fault in the cell. Running two or three full charge cycles through the base station conditions the BMS to the N90Q's actual load signature and the cutouts stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station showing full charge but headset dies after short use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA replacement Li-Polymer cell ships at storage voltage — typically around 3.6V — not at full charge. The N90Q base station can read this as a charged state before the cell has actually been topped up. The result is a headset that appears ready but cuts off quickly under load. Fix it by placing the headset in the cradle for a full uninterrupted charge cycle. After that cycle, the base station's charge indicator reflects the actual cell state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428103651418,"sku":"BWCS-AKN900SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428103684186,"sku":"BWCS-AKN900SL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428103716954,"sku":"BWCS-AKN900SL-3","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AKN900SL-1.webp?v=1779934117","url":"https:\/\/batteryweb.com\/products\/akg-n90q-replacement-battery-37v-1200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}