{"product_id":"aeg-electrolux-osiris-replacement-battery-72v-3400mah-li-ion","title":"Electrolux Osiris 7.2V Replacement Battery S91-0400410-SU2","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAEG Electrolux Osiris — 7.2V Li-ion Replacement Battery (S91-0400410-SU2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.2V, 3400mAh Li-ion battery replaces the original pack in the Electrolux Osiris cordless stick vacuum. It fits the Osiris range including model numbers 900258195, RX7-1-TM, and 900277268, among others. Voltage and capacity match the OEM spec exactly — no modifications needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOsiris platform compatibility:\u003c\/strong\u003e\n    The Osiris series runs a shared 7.2V battery rail across its variants. All listed models use the same connector layout and BMS handshake, so the pack communicates correctly with the vacuum's motor controller without triggering a fault state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full charge and load cycles on an Osiris unit. The BMS held cutoff thresholds within spec under sustained motor draw and recovered cleanly after a full discharge cycle with no fault flags thrown.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on the Osiris:\u003c\/strong\u003e\n    Do not leave the Osiris sitting on the charging dock permanently. Continuous trickle charge from the dock accelerates capacity fade in Li-ion cells faster than normal cycling. Charge to full, then remove it from the dock between uses.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOsiris suction dropping before the battery indicator reaches low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Osiris motor draws significantly more current when airflow is restricted — a partially blocked filter is the most common cause. Under that extra load, the battery's BMS detects a voltage sag and begins throttling power to the motor before the indicator registers low. The vacuum feels like a weak battery when the actual problem is filter restriction driving up current draw. Clean or replace the filter first, then retest — motor draw should return to under 3A at full suction.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cutting out mid-clean and then recovering after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a failed battery. When sustained suction restriction forces the motor to pull more current than the BMS threshold allows, the pack shuts off to protect the cells and resets after a brief cooldown. It will keep happening until the restriction is cleared. Check the filter and the brush-roll channel for blockages — once airflow is restored, the BMS should stop tripping under normal carpet load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428003184730,"sku":"BWCS-AGP910VX-1","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428003217498,"sku":"BWCS-AGP910VX-2","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428003250266,"sku":"BWCS-AGP910VX-3","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AGP910VX-1.webp?v=1779933824","url":"https:\/\/batteryweb.com\/products\/aeg-electrolux-osiris-replacement-battery-72v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}