{"product_id":"q-sonic-multimedia-x-dream-player-replacement-battery-74v-1700mah-li-ion","title":"Q-Sonic PE2064-2 Multimedia X-Dream-Player Compatible Battery 7.4V 1700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eQ-Sonic Multimedia X-Dream-Player \/ PE-2058 — 7.4V Li-ion Replacement Battery (PE2064-2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 1700mAh Li-ion battery replaces the original cell pack in the Q-Sonic Multimedia X-Dream-Player and PE-2058 portable media player. It matches the OEM part numbers PE2064-2 and CGP345010G. Capacity is 12.58Wh — identical to the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eX-Dream-Player and PE-2058 compatibility:\u003c\/strong\u003e\n    Both models share the same 7.4V two-cell Li-ion architecture, connector pinout, and BMS communication protocol — one battery fits either unit without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through the X-Dream-Player's charge controller and confirmed the BMS handshake completes correctly, with charge termination triggering at the expected 8.4V cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap charge cycle:\u003c\/strong\u003e\n    After fitting a new cell, charge the player fully before first use. Media players frequently enter deep-discharge protection after cell replacement, and the charge controller needs to push a slow trickle current before it transitions to normal CC\/CV charging.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery percentage jumping around after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe X-Dream-Player uses a voltage-threshold fuel gauge rather than a coulomb counter. When a new cell goes in, the gauge has no learned baseline to map voltage against remaining charge. It estimates state-of-charge from raw cell voltage, which causes the display to jump 10–20% in either direction until the BMS runs two or three full charge-discharge cycles and recalibrates its voltage curve. Run the player down to the low-battery warning and then charge to full — repeat twice and the percentage readout will stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePlayback cutting out before the battery indicator reads empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe audio amplifier stage in the X-Dream-Player draws a spike of current when driving headphones at higher volumes. Near the end of a discharge cycle, cell voltage sags under that load and briefly dips below the BMS undervoltage threshold, triggering a protective cutoff even though the gauge still shows charge remaining. This is not a faulty battery — it is the BMS protecting the cells from damage. Lower playback volume during the final portion of charge or charge the unit when the indicator reaches one bar to avoid the cutoff.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381334933594,"sku":"BWCS-QPE205SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381334966362,"sku":"BWCS-QPE205SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381334999130,"sku":"BWCS-QPE205SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-QPE205SL-1.webp?v=1778900029","url":"https:\/\/batteryweb.com\/products\/q-sonic-multimedia-x-dream-player-replacement-battery-74v-1700mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}