{"product_id":"sencor-spv7909-replacement-battery-74v-1800mah-li-ion","title":"Sencor SPV7909 Replacement Battery 7.4V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSencor SPV7909 \/ SPV-7909T — 7.4V Li-ion Replacement Battery (SPV-7909)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V, 1800mAh Li-ion battery replaces the original power cell in the Sencor SPV7909 and SPV-7909T portable DVD players. It restores cordless playback when the original battery no longer holds a usable charge. Capacity is 13.32Wh — identical to the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSPV7909 and SPV-7909T compatibility:\u003c\/strong\u003e\n    Both models share the same 7.4V nominal voltage rail, identical physical connector, and the same BMS handshake protocol. One battery fits both without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on the SPV7909 platform. The BMS reported correct state-of-charge, and the protection circuit tripped at the expected low-voltage threshold without locking the pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use charge cycle on a DVD player:\u003c\/strong\u003e\n    Cells ship at storage voltage — typically 3.6–3.8V per cell. Plug the SPV7909 into AC power and charge fully before the first playback session. The disc motor and backlight together pull enough current that a partially charged cell will sag below the BMS cutoff threshold faster than expected.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SPV7909 may not last a full movie on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe SPV7909 draws current from three simultaneous loads: the disc spin motor, the LCD backlight, and the decoding board. Peak draw happens at disc start-up, when the motor ramps to read speed. A cell that shipped at storage voltage and was never fully charged before use will hit the BMS low-voltage cutoff earlier than the rated capacity suggests. Always run a complete charge cycle before comparing playback duration against rated capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eScreen dimming mid-movie on the SPV7909\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the backlight visibly dims during playback without any setting change, the battery voltage has sagged below the display driver's stable operating range — usually around 6.8V under load. This is not a screen fault. The display driver reduces backlight power to keep the decoder board running as long as possible. Connect to AC power immediately and check that the battery reaches a resting voltage of 8.2–8.4V after a full charge before using it on battery again.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360230932570,"sku":"BWCS-SCV799DY-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360230965338,"sku":"BWCS-SCV799DY-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360230998106,"sku":"BWCS-SCV799DY-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SCV799DY-1.webp?v=1778611023","url":"https:\/\/batteryweb.com\/products\/sencor-spv7909-replacement-battery-74v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}