{"product_id":"jabra-elite-85h-replacement-battery-37v-750mah-li-polymer","title":"Jabra Elite 85H Compatible Battery AK-E285 3.7V 750mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eJabra Elite 85H \/ Evolve2 85 — 3.7V Li-Polymer Replacement Battery (AK-E285)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is the AK-E285 Li-Polymer cell for the Jabra Elite 85H and Evolve2 85 wireless headphones. It runs at 3.7V with a 750mAh (2.78Wh) capacity. Fit this battery when the original cell no longer holds a charge or talk time has noticeably dropped.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eElite 85H and Evolve2 85 compatibility:\u003c\/strong\u003e\n    Both models share the same 3.7V battery rail, connector pinout, and BMS handshake protocol — one cell covers both headsets. The AK-E285 part number is common to the entire platform.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, idle, and active ANC-plus-Bluetooth draw states. The BMS negotiated correctly with the host headset on each run and held voltage within spec under combined load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle base station protocol:\u003c\/strong\u003e\n    Seat the headset in the base station and complete one full charge cycle before taking a call. The base station needs that full cycle to log the new cell — until it does, the talk-time indicator will read inaccurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Elite 85H cuts out mid-call on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Elite 85H draws simultaneously from the audio processor, ANC circuit, and Bluetooth radio during a call. That combined load creates brief current spikes that a cell at storage voltage cannot sustain cleanly. When cell voltage dips below the BMS protection threshold — even momentarily — the headset drops the connection. Completing a full charge cycle in the base before the first call eliminates this drop-out pattern by bringing the cell to its rated voltage plateau.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station shows full charge but headset shuts off after short use\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-Polymer cell ships at storage voltage, typically around 3.6–3.7V, not at peak charge. The base station's charge indicator reads a completed charge state before the cell has actually been brought to 4.2V through a proper CC\/CV cycle. The headset then pulls from a cell that looks full but carries less usable energy than expected. Run one complete uninterrupted charge in the base — the indicator should cycle through charging and settle at full — before relying on the headset for extended use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428097818714,"sku":"BWCS-JPR285SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428097851482,"sku":"BWCS-JPR285SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428097884250,"sku":"BWCS-JPR285SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-JPR285SL-1.webp?v=1779934062","url":"https:\/\/batteryweb.com\/products\/jabra-elite-85h-replacement-battery-37v-750mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}