{"product_id":"medion-50077082-replacement-battery-108v-7800mah-li-ion","title":"Medion 50077082 Portable Speaker Replacement Battery 10.8V 7800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMedion LIFE P61768 Series — 10.8V Li-ion Replacement Battery (3ICR19\/66-3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 10.8V, 7800mAh Li-ion battery replaces the original pack in the Medion 50077082, LIFE P61746, LIFE P61762, and LIFE P61768 portable Bluetooth speakers. All four models share the same 3ICR19\/66-3 cell configuration and BMS pinout. Capacity is rated at 84.24Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLIFE P61746, P61762, P61768 and 50077082 compatibility:\u003c\/strong\u003e\n    These speakers run on the same 3S Li-ion cell arrangement and use the same BMS handshake protocol. Swapping the pack across any of these four models does not require firmware changes or connector adapters.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through a full charge-discharge sequence while monitoring the BMS under combined Bluetooth radio and amplifier draw. The protection circuit held cutoff at the correct low-voltage threshold and balanced all three cell groups within 20mV at top-of-charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge reset after fitting:\u003c\/strong\u003e\n    These Medion speakers use a coulomb-counter fuel gauge that carries over state-of-charge data from the old pack. After fitting this battery, run a full discharge to the auto-shutoff point, then charge uninterrupted to 100%. This resets the gauge baseline and prevents the indicator from reading incorrectly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAudio distortion before the battery indicator reaches empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAs an aged Li-ion pack loses capacity, internal resistance climbs. Under the combined current draw of the amplifier and Bluetooth radio at high volume, pack voltage sags below the amplifier's clean-rail threshold before the BMS reaches its cutoff point. The amplifier clips the signal rather than shutting down, so you hear distortion while the indicator still shows charge remaining. Fitting a fresh pack with lower internal resistance eliminates the sag and restores clean output down to the BMS cutoff at approximately 9.0V.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBluetooth dropping at high volume on a new or recently replaced battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA Bluetooth dropout during loud playback is not a pairing fault — it is a voltage event. Peaks in amplifier demand at high volume create short current spikes that momentarily drag pack voltage down. If the BMS interprets that sag as an under-voltage condition, it briefly interrupts output, which resets the Bluetooth radio. To confirm this is the cause, lower volume by 20% and check whether dropouts stop. If they do, check that the replacement pack is fully charged to 12.6V before extended high-volume use, as a partially charged pack has less voltage headroom to absorb those spikes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416186519642,"sku":"BWCS-MDP768SL-1","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416186552410,"sku":"BWCS-MDP768SL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416186585178,"sku":"BWCS-MDP768SL-3","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MDP768SL-1.webp?v=1779760648","url":"https:\/\/batteryweb.com\/products\/medion-50077082-replacement-battery-108v-7800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}