{"product_id":"electrolux-pf91-replacement-battery-324v-3000mah-li-ion","title":"Electrolux PF91 32.4V Replacement Battery 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eElectrolux PF91 Series — 32.4V Li-ion Replacement Battery (56645709099)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 32.4V Li-ion battery pack replaces the original 56645709099 unit in the Electrolux PF91 and PF91-ALRP cordless stick vacuums. It runs at 3000mAh (97.2Wh) — matching the factory capacity spec. Fit the pack the same way as the original and the vacuum powers on without any pairing step.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePF91 and PF91-ALRP compatibility:\u003c\/strong\u003e\n    Both models use the same 32.4V battery rail, identical connector housing, and the same BMS communication protocol — so one cell covers both variants without any adapter or firmware workaround.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through full charge and discharge passes on a PF91 unit. The BMS held the discharge cutoff at the correct low-voltage threshold and did not trip the overcurrent protection during repeated motor start-up draws.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging behaviour on the PF91:\u003c\/strong\u003e\n    The PF91 charging dock does not cut power once the pack hits 100%. Leaving the vacuum docked permanently trickle-charges the cells and accelerates capacity fade. Charge to full, then remove the vacuum from the dock until the next use.\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 on the PF91\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when a partially blocked filter forces the motor to draw above its rated current. The BMS reads that surge as a near-depletion load and reduces power output to protect the cells — even when the indicator still shows charge remaining. The vacuum feels like a weak battery, but the pack itself is fine. Clean or replace the filter first, then recharge the pack to 32.4V before testing suction again.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cutting out mid-use and recovering after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a dead battery. When suction is restricted — by a blockage, a clogged filter, or a sealed floor nozzle — the motor stalls briefly and pulls a current spike that exceeds the BMS threshold. The BMS shuts off output, the motor stops, and then resets a few seconds later. Clear any blockage in the nozzle or hose, check the filter condition, and confirm the pack voltage reads above 30V before ruling out a cell fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43427957997658,"sku":"BWCS-ELF912VX-1","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43427958030426,"sku":"BWCS-ELF912VX-2","price":116.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43427958063194,"sku":"BWCS-ELF912VX-3","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ELF912VX-1.webp?v=1779933520","url":"https:\/\/batteryweb.com\/products\/electrolux-pf91-replacement-battery-324v-3000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}