{"product_id":"uniden-guardian-g955-replacement-battery-37v-2000mah-li-polymer","title":"Uniden Guardian G955 Replacement Battery 3.7V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eUniden Guardian G955 \/ UDR744HD Series — 3.7V Li-Polymer Replacement Battery (634169)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2000mAh (7.4Wh) Li-Polymer battery replaces OEM part 634169 in the Uniden Guardian G955, Guardian UDR, UDR744, and UDR744HD wireless security cameras. When the original cell degrades, motion recording becomes unreliable and the camera drops offline. This replacement restores normal operation without replacing the entire unit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGuardian G955 and UDR series compatibility:\u003c\/strong\u003e\n    These models share the same 3.7V battery rail, connector pinout, and BMS handshake protocol — the 634169 cell seats and communicates identically across the G955, UDR, UDR744, and UDR744HD platforms.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through simulated motion-trigger events, monitoring BMS cutoff behaviour during the combined IR LED and processor current spikes that occur at each trigger. The cell held voltage without tripping cutoff under back-to-back trigger loads.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-install power cycle:\u003c\/strong\u003e\n    After fitting this battery, power cycle the camera once through the Uniden app. The firmware must register the new cell before motion events log correctly to cloud storage — skipping this step can cause missed recordings even when the camera appears online.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Guardian G955 goes offline in the app after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eReplacing the battery clears the camera's active session token. The app loses the authenticated connection and marks the device offline even though the hardware is powered. This is a firmware state issue, not a fault with the battery or the camera. Open the Uniden app, remove the device from your device list, then re-add it using the original pairing steps to restore the live feed.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eApp reporting 0% or incorrect battery percentage after installing this cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Guardian series uses a voltage-threshold indicator — it reads cell voltage and maps it to a percentage, it does not use a fuel gauge IC. A new Li-Polymer cell at rest sits near full charge but the firmware's threshold map may not align until the cell completes one full charge-discharge cycle. Run the camera normally until the low-battery alert triggers, then charge to full. After that first full cycle, the percentage display will track accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377784881242,"sku":"BWCS-UND955SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377784914010,"sku":"BWCS-UND955SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377784946778,"sku":"BWCS-UND955SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-UND955SL-1.webp?v=1778772259","url":"https:\/\/batteryweb.com\/products\/uniden-guardian-g955-replacement-battery-37v-2000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}