{"product_id":"marantz-rc9001-replacement-battery-37v-2200mah-li-ion","title":"Marantz RC9001 Replacement Battery 3.7V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMarantz RC9001 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 2200mAh Li-ion battery fits the Marantz RC9001 infrared remote control. The RC9001 is used to operate Marantz A\/V receivers and amplifiers. When the original cell loses capacity or refuses to hold a charge, this is the direct replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRC9001 fit:\u003c\/strong\u003e\n    The RC9001 uses a single rechargeable Li-ion cell rather than disposable AA or AAA batteries. This cell matches the 3.7V nominal voltage and physical 65.99 × 18.33 × 18.33mm footprint the remote's battery bay requires.\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 bench. The protection circuit tripped correctly at low-voltage cutoff and accepted a full charge without thermal event or BMS lockout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eSingle-cell install note:\u003c\/strong\u003e\n    The RC9001 runs one Li-ion cell, so there is no second cell to worry about. Before fitting, confirm the polarity markings inside the bay match the cell's positive and negative terminals — Li-ion cells installed backwards will not power the remote and can stress the protection circuit.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the RC9001 IR signal weakens before the battery is fully depleted\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe RC9001's IR LED needs a minimum voltage to fire at full intensity. A Li-ion cell begins dropping below that threshold well before it reaches 0% charge. The remote still powers on and the display may still light up, but the IR burst is too weak to trigger the receiver across a normal room. At that point the cell reads around 3.5V or lower — replace it rather than trying to recover it with a top-up charge.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRC9001 shows no response at all after fitting the new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new cell that produces zero response is almost always installed backwards. The positive terminal on this Li-ion cell must align with the positive marking inside the RC9001's battery compartment. Reversed polarity blocks the circuit entirely — the remote will not power on, and no button will register. Remove the cell, flip it 180 degrees, reseat it, and press any button to confirm operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416109809754,"sku":"BWCS-PSU9600RC-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416109842522,"sku":"BWCS-PSU9600RC-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416109875290,"sku":"BWCS-PSU9600RC-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PSU9600RC-1.webp?v=1779760330","url":"https:\/\/batteryweb.com\/products\/marantz-rc9001-replacement-battery-37v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}