{"product_id":"shark-replacement-battery-18v-3750mah-li-ion","title":"Shark 18V Cordless Vacuum Replacement Battery XIABTR540 3750mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eShark XIABTR540 — 18V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 18V lithium-ion battery replaces the Shark XIABTR540 and XIABTR540EU cells found in Shark cordless vacuum cleaners. Capacity is 3750mAh (67.5Wh), matching the original cell specification. It restores full motor voltage to handheld and upright Shark cordless models running the 18V battery platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e18V cordless vacuum platform:\u003c\/strong\u003e\n    These Shark models share a common 18V rail and BMS handshake. The replacement cell carries the same voltage profile so the vacuum's motor controller sees the battery as original and does not restrict power output.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through sustained suction cycles and monitored the BMS under load. Overcurrent protection tripped correctly at high draw, and the cell recovered cleanly to full charge voltage after each discharge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on Shark cordless vacuums:\u003c\/strong\u003e\n    Do not leave the vacuum on the charging dock permanently. Shark cordless vacuums on continuous dock charge develop capacity fade faster than those charged only when the battery is depleted. Charge to full, then remove the vacuum 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\"\u003eCordless vacuum losing suction before the battery indicator reaches low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe suction indicator reads mid-charge but the motor sounds weak and pickup drops noticeably. This happens because a partially blocked filter forces the motor to draw more current than rated, causing voltage to sag at the cell before the indicator registers depletion. The BMS reads this as a normal load drop and does not flag it as low battery. Check and clean the filter first — if suction restores immediately, the battery was not the cause.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cutting out mid-clean and then recovering after a short pause\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 full dust cup, or a clogged filter — the motor spins harder to compensate, pulling current above the BMS threshold. The BMS cuts the circuit to protect the cell, and it resets after the load is removed. Clear the blockage, empty the dust cup, and confirm the filter is seated correctly before using the vacuum again.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426376810586,"sku":"BWCS-SHK540VX-1","price":108.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426376843354,"sku":"BWCS-SHK540VX-2","price":128.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426376876122,"sku":"BWCS-SHK540VX-3","price":142.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SHK540VX_1.webp?v=1779931027","url":"https:\/\/batteryweb.com\/products\/shark-replacement-battery-18v-3750mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}