{"product_id":"ecovacs-w830-replacement-battery-148v-800mah-li-ion","title":"Ecovacs W830 Replacement Battery 14.8V 800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEcovacs W830 \/ W850 \/ W930 — 14.8V Li-ion Replacement Battery (INR14500-3S)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 800mAh Li-ion battery pack for the Ecovacs W830, W830-RD, W850, and W930 robotic vacuum cleaners. It replaces part number INR14500-3S and powers the drive motors, suction fan, and navigation electronics. When the original cell degrades after repeated cycles, cleaning runs shorten and suction drops early — this pack restores normal operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eW830, W850, and W930 platform compatibility:\u003c\/strong\u003e\n    These models share the same 14.8V four-cell battery rail, connector housing, and BMS handshake protocol. The INR14500-3S pack fits all of them because the voltage and communication signal are identical across the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge and discharge cycles on W830 hardware. The BMS responded correctly to the robot's charge termination signal and triggered overcurrent protection cleanly under a simulated filter-blocked motor load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging behaviour on the W830:\u003c\/strong\u003e\n    Remove the W830 from the dock once the charge indicator shows full. Leaving it docked indefinitely keeps the cells at terminal voltage under a trickle current — this accelerates capacity fade faster than normal cycling does.\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\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the motor draws more current than the pack can sustain cleanly — voltage sags under load even though the BMS reports adequate charge. On a degraded cell, this gap between indicated capacity and usable voltage widens quickly. A new INR14500-3S pack restores the voltage floor the suction motor needs to maintain consistent airflow. If suction still drops early after fitting a new pack, check the filter — a partially blocked filter forces the motor to draw above its rated current, which triggers the same symptom.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-cycle then restarts on its own\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is an overcurrent trip from the BMS, not a loose connection or software fault. When airflow is restricted — by a full dustbin, a blocked filter, or carpet fibres caught in the brush roll — the motor pulls sustained high current and the BMS shuts the output to protect the cells. The pack resets once current drops, which is why the robot restarts a few seconds later. Clear the filter and brush roll first. If the cutout continues on an unblocked machine, the original pack's cells have degraded to the point where normal motor-start current is enough to trip the threshold — replace the battery.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428016455770,"sku":"BWCS-EDW830VX-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428016488538,"sku":"BWCS-EDW830VX-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428016521306,"sku":"BWCS-EDW830VX-3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EDW830VX-1.webp?v=1779933824","url":"https:\/\/batteryweb.com\/products\/ecovacs-w830-replacement-battery-148v-800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}