{"product_id":"cecotec-conga-8090-replacement-battery-144v-5200mah-li-ion","title":"Cecotec Conga 8090 Replacement Battery 14.4V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCecotec Conga 8090 Series — 14.4V Li-ion Replacement Battery (U099-4S1P \/ U099-4S2P)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.4V, 5200mAh (74.88Wh) Li-ion battery replaces the original cell in the Cecotec Conga 8090, Conga 8090 Ultra, Conga 8090 Ultra T, and Conga 8090 Ultra X robotic vacuum cleaners. It matches the OEM voltage rail and connector geometry for those models. Fit the replacement and the robot picks up where the degraded original left off.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConga 8090 platform fit:\u003c\/strong\u003e\n    The 8090, 8090 Ultra, 8090 Ultra T, and 8090 Ultra X all share the same battery bay dimensions and 14.4V power architecture. The U099-4S1P and U099-4S2P part numbers cover both single and double parallel cell configurations at the same nominal voltage, so the BMS handshake and connector remain consistent across variants.\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 Conga 8090 platform and confirmed the BMS completed a full charge cycle without fault codes. The protection circuit responded correctly to load spikes from the brush motor engaging on carpet transitions.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging behaviour on the Conga 8090:\u003c\/strong\u003e\n    Do not leave the robot sitting on the dock indefinitely between cleans. The Conga 8090 dock delivers a trickle charge once the battery reaches full — prolonged trickle charging accelerates cell degradation faster than standard cycle wear. Charge to full, then lift the unit off the dock.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSuction dropping before the battery indicator shows low on the Conga 8090\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the brush motor draws above its rated current — usually caused by a partially blocked filter or tangled brush roll — and the battery voltage sags under that elevated load. The BMS reads the sag as low cell voltage and throttles power to the motor before the indicator reaches the low-battery threshold. The robot appears to be losing battery when it is actually reacting to a restricted airflow path. Clean the HEPA filter and clear the brush roll, then recheck — suction should stabilise well above the low indicator.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-clean then restarts on its own\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a battery fault. When the brush motor stalls — against a rug edge, a cord, or a clogged intake — current draw spikes sharply and the BMS opens the output circuit to protect the cells. The robot pauses, the BMS resets after a few seconds, and the motor restarts. If this happens repeatedly in the same area, the motor is hitting a sustained restriction. Clear the obstruction, check that the filter is clean, and confirm no debris is jammed in the brush bearing before resuming the clean cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426394243162,"sku":"BWCS-CNU099VX-1","price":81.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426394275930,"sku":"BWCS-CNU099VX-2","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426394308698,"sku":"BWCS-CNU099VX-3","price":106.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CNU099VX_1.webp?v=1779931174","url":"https:\/\/batteryweb.com\/products\/cecotec-conga-8090-replacement-battery-144v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}