{"product_id":"harmankardon-onyx-studio-8-replacement-battery-37v-2600mah-li-ion","title":"Harman\/Kardon Onyx Studio 8 Compatible Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHarman\/Kardon Onyx Studio 8 — 3.7V Li-ion Replacement Battery (ICA077NA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 2600mAh Li-ion replacement cell for the Harman\/Kardon Onyx Studio 8 portable Bluetooth speaker. It replaces the internal rechargeable pack when the original no longer holds charge. OEM part number ICA077NA.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOnyx Studio 8 fitment:\u003c\/strong\u003e\n    The Studio 8 runs a single-cell 3.7V Li-ion pack on a dedicated BMS that manages both the amplifier rail and the Bluetooth radio. This replacement matches the cell voltage, connector pinout, and BMS handshake required by the Studio 8 mainboard.\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 Studio 8 platform. The onboard BMS accepted the cell without fault codes, balanced charge termination fired correctly at 4.2V, and the protection circuit tripped at the expected undervoltage threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMonthly discharge cycle for the Onyx Studio 8:\u003c\/strong\u003e\n    The Studio 8 spends most of its life sitting on a desk at full charge between uses. Let the battery drop below 20% at least once a month before plugging in — constant top-off charging without a full discharge causes fuel gauge drift and accelerates capacity fade on the Li-ion cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCapacity fade from shallow cycling on the Onyx Studio 8\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells in portable speakers degrade faster when they are constantly recharged from 70–80% without ever running low. The Studio 8 has no active cell-balancing circuit to compensate for fuel gauge drift caused by this pattern. Over time, the reported charge level decouples from actual cell capacity, so the speaker shuts off while the indicator still shows bars remaining. Replacing the cell resets this, but the same pattern will repeat if charging habits do not change.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAudio distorting before the battery indicator reaches empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAt high volume, the amplifier in the Studio 8 draws current in peaks that the aging cell cannot supply without voltage sag. The output stage clips under that sag before the battery indicator triggers low-battery cutoff. This is a cell internal-resistance problem, not an amplifier fault. A fresh cell with lower internal resistance handles the peak draw without the voltage drop that causes clipping.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416198643802,"sku":"BWCS-HKE800SL-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416198676570,"sku":"BWCS-HKE800SL-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416198709338,"sku":"BWCS-HKE800SL-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HKE800SL-1.webp?v=1779760769","url":"https:\/\/batteryweb.com\/products\/harmankardon-onyx-studio-8-replacement-battery-37v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}