{"product_id":"shark-sv780n-replacement-battery-168v-2000mah-ni-mh","title":"Shark XB780N 16.8V Ni-MH Cordless Vacuum Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eShark SV780N Series — 16.8V Ni-MH Replacement Battery (XB780N)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 16.8V, 2000mAh Ni-MH replacement battery for the Shark SV780N cordless stick vacuum. It fits the SV780N, SV780, SV780_N, and SV760 models using OEM part number XB780N. When the original cell loses its ability to hold charge, this unit restores the vacuum to normal working condition.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSV780 and SV760 platform compatibility:\u003c\/strong\u003e\n    These models share the same 16.8V battery rail, connector housing, and BMS communication protocol — which is why a single cell covers all four variants listed. The pack slots directly into the battery bay and the vacuum's charge circuit recognises it without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge cycles on the SV780N dock and monitored BMS handshake, cutoff voltage at full discharge, and thermal response under sustained motor load. The BMS held cutoff at the correct low-voltage threshold with no false trips during normal suction cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging discipline for Ni-MH cells:\u003c\/strong\u003e\n    Do not leave this vacuum on the dock permanently. Ni-MH chemistry is particularly vulnerable to trickle-charge damage from continuous dock contact — capacity fade accelerates significantly faster than in cells charged only when 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\"\u003eThis happens when the motor draws more current than the battery can deliver at its current state of charge — voltage sags under load even though the indicator still reads mid-range. A clogged filter forces the motor to work harder, pulling higher current and triggering earlier voltage sag. Clean or replace the foam and felt filters before fitting a new battery. If suction recovers after a filter clean, the original cell was likely not the primary cause of the problem.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-clean then restarts 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 — blocked brush roll, saturated filter, or a sealed nozzle — the motor current spikes above the BMS threshold and the pack cuts power to protect the cell. After a brief pause the BMS resets and the vacuum restarts. Clear the blockage and clean the filter first. If the cut-outs stop after clearing the restriction, the battery and BMS are functioning correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428046504026,"sku":"BWCS-EXV870VX-1","price":57.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428046536794,"sku":"BWCS-EXV870VX-2","price":67.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428046569562,"sku":"BWCS-EXV870VX-3","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EXV870VX-1.webp?v=1779933939","url":"https:\/\/batteryweb.com\/products\/shark-sv780n-replacement-battery-168v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}