{"product_id":"dora-cr330-replacement-battery-111v-2600mah-li-ion","title":"Dora CR330 Replacement Battery 11.1V 2600mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDora CR330 Series — 11.1V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V 2600mAh (28.86Wh) lithium-ion battery for the Dora CR330, CR331, CR332, and CR333 cordless vacuum cleaners. It replaces the original cell when capacity fade has shortened cleaning cycles to the point the vacuum is no longer useful. Slot it into the same battery bay — same voltage, same form factor.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCR330 series compatibility:\u003c\/strong\u003e\n    The CR330, CR331, CR332, and CR333 share the same 11.1V battery rail and connector pinout. The BMS on each model expects the same voltage window and communicates the same charge and discharge thresholds, so one cell covers the full range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full discharge and recharge on the CR330 platform. The BMS held the low-voltage cutoff at the correct threshold and resumed charge acceptance without fault codes on the charger LED.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on cordless vacuums:\u003c\/strong\u003e\n    Do not leave the Dora CR330 sitting on the charging dock continuously between uses. Cordless vacuums on permanent dock charge develop capacity fade faster than those charged only when the cell is depleted. Charge to full, then remove from 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 reaches low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe CR330 motor draws significantly more current when the filter is partially blocked or the dustbin is full. Under that extra load, voltage sags earlier in the discharge curve than the indicator expects. The indicator is calibrated for normal operating current — not restricted-airflow current. Clean the filter and empty the dustbin first. If suction restores immediately, the battery is not the fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-clean then recovers after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a dead battery. When sustained suction restriction forces the motor to pull above the BMS current limit, the protection circuit opens and cuts power. The cell cools slightly, the BMS resets, and the motor restarts. The fix is removing the restriction — check the filter, the dustbin seal, and the suction path for blockages before concluding the battery is faulty. A clear airway keeps draw within the BMS threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428026974298,"sku":"BWCS-ECR330VX-1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428027007066,"sku":"BWCS-ECR330VX-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428027039834,"sku":"BWCS-ECR330VX-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ECR330VX-1.webp?v=1779933900","url":"https:\/\/batteryweb.com\/products\/dora-cr330-replacement-battery-111v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}