{"product_id":"dyson-v11-2020-replacement-battery-252v-4000mah-li-ion","title":"Dyson V11 2020 Replacement Battery 25.2V 4000mAh 970938-01","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDyson V11 2020 Series — 25.2V Li-ion Replacement Battery (970938-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 25.2V, 4000mAh (100.8Wh) lithium-ion battery for the Dyson V11 cordless vacuum range. It fits the V11 2020, V11 Absolute+, V11 Absolute Extra+, V11 Click-In, and over a dozen related V11 variants. OEM part numbers covered include 970938-01, 970425-01, and SV-series identifiers SV15, SV16, SV17, SV18, and SV22.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eV11 platform compatibility:\u003c\/strong\u003e\n    The V11 range shares a common 25.2V battery rail, connector format, and BMS handshake protocol across all SV15–SV22 models. The battery communicates charge state data to the vacuum's LCD screen — cell count and BMS communication architecture must match, which they do across this entire variant group.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a V11 Absolute under motor load across all three suction modes. The BMS held voltage within spec through full discharge cycles, and the LCD screen reported accurate charge-state percentage throughout — no false low-battery cutoffs were triggered.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging behaviour on V11 units:\u003c\/strong\u003e\n    Do not leave the V11 sitting on the wall dock as a permanent storage position. Continuous dock contact keeps the BMS in a low-level trickle state that 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\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe V11 motor controller scales power output to available voltage. When cell capacity degrades or a filter restriction forces higher current draw, voltage sags under load before the battery gauge reflects it. The LCD may show two or three bars while suction has already weakened noticeably. A clean filter removes restriction and keeps current draw inside the BMS's preferred operating band — check and wash the filter before concluding the battery is at fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cutting out mid-clean and then recovering after a pause\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a dead battery. When airflow is restricted — blocked filter, clogged brush bar, or heavy carpet pile — the motor draws sustained current above the BMS threshold and the protection circuit opens. The vacuum restarts after a short recovery window because the BMS resets once current demand drops. Clear the blockage completely, then check that resting pack voltage reads at least 25.2V before ruling out a cell issue.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428012687450,"sku":"BWCS-DYC180VX-1","price":132.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428012720218,"sku":"BWCS-DYC180VX-2","price":156.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428012752986,"sku":"BWCS-DYC180VX-3","price":174.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DYC180VX-1.webp?v=1779933824","url":"https:\/\/batteryweb.com\/products\/dyson-v11-2020-replacement-battery-252v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}