{"product_id":"logitech-harmony-touch-replacement-battery-37v-1050mah-li-ion","title":"Logitech Harmony Touch 3.7V 1050mAh Li-ion Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLogitech Harmony Touch \/ Ultimate Series — 3.7V Li-ion Replacement Battery (533-000084)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1050mAh Li-ion battery for the Logitech Harmony Touch and Harmony Ultimate series remotes, including the Harmony Ultimate One (915-000198). It replaces OEM part numbers 533-000084, 533-000083, and 1209. When the original cell depletes, this swap restores full remote function without replacing the entire unit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHarmony Touch, Ultimate, and Ultimate One compatibility:\u003c\/strong\u003e\n    These models share the same battery bay dimensions, connector orientation, and 3.7V supply rail. The same cell fits all three without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in a Harmony Touch and verified that the onboard BMS accepted the charge cycle, held the cutoff voltage correctly, and powered the touchscreen and IR emitter through full operating range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eTouchscreen power threshold:\u003c\/strong\u003e\n    The Harmony Touch runs a capacitive touchscreen alongside its IR emitter — both drawing from the same cell. If the remote powers on but the screen is unresponsive, check that the connector tab is fully seated. A partially connected cell drops below the voltage the screen controller needs before the IR circuit shows any symptom.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Harmony Touch shows a charging indicator but the battery never fills\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Harmony Touch charges through a micro-USB port feeding a small internal charge controller. If the original cell has discharged below roughly 2.5V, that controller may not recognise the battery as valid and will cycle on and off without delivering a full charge. A new cell starts above this threshold, so the charge controller accepts it immediately. If the charge indicator still loops after install, seat the connector firmly — the contact pins on this remote are shallow and a loose fit interrupts the charge path.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRemote stops responding mid-session even though the battery shows as charged\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAn aged Li-ion cell can report adequate voltage at rest but sag sharply the moment the IR LEDs fire a burst command. The Harmony Touch sends multi-device command strings that trigger several IR pulses in quick succession, which pulls more current than a single-button press. If the cell's internal resistance has risen, voltage drops below the processor's minimum during that burst and the remote resets or drops the command. A fresh cell at 3.7V nominal holds steady through those multi-device bursts. If the issue returns quickly on a new battery, check whether a stuck or jammed button is creating a parasitic draw that drains the cell between uses.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416102666330,"sku":"BWCS-LOH533RC-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416102699098,"sku":"BWCS-LOH533RC-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416102731866,"sku":"BWCS-LOH533RC-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LOH533RC-1.webp?v=1779760264","url":"https:\/\/batteryweb.com\/products\/logitech-harmony-touch-replacement-battery-37v-1050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}