{"product_id":"dyson-dc31-animal-replacement-battery-228v-2500mah-li-ion","title":"Dyson DC31 Animal 22.8V Replacement Battery 965557-03","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDyson DC31 Animal \/ DC34 \/ DC35 Series — 22.8V Li-ion Replacement Battery (965557-03)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 22.8V, 2500mAh (57Wh) lithium-ion battery for the Dyson DC31 Animal, DC34, DC34 Animal, DC35, and related cordless vacuum models. It replaces OEM part numbers 965557-03, 917083-01, 202932-02, and Type-B packs. Fit the replacement when the original no longer holds charge or the vacuum powers off before the battery indicator reaches low.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDC31 \/ DC34 \/ DC35 platform compatibility:\u003c\/strong\u003e\n    These models share the same 22.8V battery rail, connector pinout, and BMS handshake protocol — which is why a single cell covers all three lines. Swapping across models in this family does not require any adapter or firmware change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a DC35 under a sustained restricted-filter load. The BMS held the correct cutoff threshold and did not trip false overcurrent during the motor-start surge. Voltage recovery after load removal matched OEM spec.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on DC31 and DC35:\u003c\/strong\u003e\n    Do not leave the vacuum on the charging dock continuously. These models draw a low trickle through the dock even after the cell is full. Charge to full, then remove — this single habit slows capacity fade measurably over the battery's life cycle.\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\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when a partially blocked filter forces the motor to draw more current than rated. Voltage sags under that sustained overcurrent load, and the BMS interprets the sag as a depleted cell — killing power well before the indicator suggests it should. The fix is not the battery. Clean or replace the pre-motor and post-motor filters first, then retest. If suction loss continues on a clean filter, check the cell resting voltage — a healthy pack at partial charge should sit above 20V at rest.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-clean, then recovers after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a dead battery. When airflow is restricted — by a blockage, a clogged filter, or a sealed floor nozzle — the motor draws a current spike the BMS flags as unsafe and shuts the output rail. After a few seconds the BMS resets and power returns. Clear the blockage, check the filter, and run the vacuum again. If the cut-out repeats on unrestricted airflow with a clean filter, measure cell voltage under load — a cell dropping below 18V during normal use indicates genuine cell degradation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428053352538,"sku":"BWCS-DYC571VX-1","price":84.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428053385306,"sku":"BWCS-DYC571VX-2","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428053418074,"sku":"BWCS-DYC571VX-3","price":109.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/batteryweb.com\/products\/dyson-dc31-animal-replacement-battery-228v-2500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}