{"product_id":"bmw-motorrad-n1-replacement-battery-38v-3200mah-li-polymer","title":"BMW Motorrad N1 Wireless Headset Replacement Battery GHN12306 3.8V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBMW Motorrad N1 — 3.8V Li-Polymer Replacement Battery (GHN12306)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 3200mAh lithium-polymer cell replaces part number GHN12306 in the BMW Motorrad N1 wireless motorcycle headset. It restores power to the Bluetooth audio and communication system used by riders. Capacity figures are taken directly from the product specification — 12.16Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBMW Motorrad N1 fit:\u003c\/strong\u003e\n    The N1 headset uses a flat Li-Polymer pack with a specific BMS handshake tied to cell voltage. The GHN12306 form factor — 51.70 × 45.60 × 11.00mm — matches the internal cavity exactly, and the protection circuit communicates correctly with the headset's charge management circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the N1 base station and monitored BMS initialisation, charge acceptance, and cutoff voltage. The cell accepted a full charge without error flags and held voltage within spec across the complete charge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBase station first-cycle logging:\u003c\/strong\u003e\n    Place the headset in the base station for a complete charge cycle before making your first call. The N1 base logs the new cell's voltage profile during that first cycle — until it does, the talk-time indicator on the base will not read accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the N1 cuts out mid-call on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe N1 headset draws current from two sources simultaneously — the Bluetooth audio codec and the DECT radio module. Under that combined load, a cell sitting at storage voltage (around 3.6V) can sag below the BMS cutoff threshold even though the charge indicator looks fine. This is not a faulty battery. Run two or three full charge-discharge cycles through the base station and the cell's internal resistance drops, reducing the sag. After the third cycle, mid-call cutouts from voltage sag should stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station shows full charge but headset shuts off after a few minutes\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-Polymer cell ships at storage voltage — typically 3.60–3.70V — not at full charge. The base station's charge indicator can show green before the cell has reached its true full-charge voltage of 4.35V, because the indicator reads the BMS status flag rather than raw cell voltage. Seat the headset firmly in the base, leave it charging for at least three hours on the first charge, and confirm the cell voltage has reached 4.30V or above before use. That one full cycle resolves the premature shutdown in most cases.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428094705754,"sku":"BWCS-BMN100SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428094738522,"sku":"BWCS-BMN100SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428094771290,"sku":"BWCS-BMN100SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BMN100SL_1.webp?v=1779934060","url":"https:\/\/batteryweb.com\/products\/bmw-motorrad-n1-replacement-battery-38v-3200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}