【WIDE COMPATIBILITY】 DC35 battery replacement perfectly compatible with Dyson DC31 DC34 DC35 DC44 917083-01 17083-2811 18172-01-04 17083-4211 18172-0201 917083-03 (Type A). DO NOT Fit DC34 Animal, DC44 MK2, Part #: 17083-04 (Type B). Please check the machine before purchasing. | 【SAFE AND RELIABLE】 Each DC35 battery tested under strict quality standards with UL and CE, RoHS Certified. Built-in multiple protection (pressure, temperature, current). No worry about damaging your devices. | 【STRONG SUCTION】 This DC31 battery has a capacity of up to 6200mAh, which can be used for up to 28 minutes in normal mode and up to 12 minutes in high performance mode. It has a longer lifespan than other brands of batteries, works well in the vacuum cleaner, and has stronger suction power. | 【NON-SLIP】 The DC31 battery replacement is equipped with a non-slip strip. The non-slip strip can play a good anti-skid effect when the vacuum cleaner is leaned against the wall and prevent the vacuum cleaner from falling down. | 【WHAT YOU GET AND SERVICE SUPPORT】 Products include 1*DC35 replacement battery and 2*filters. Please don't hesitate to contact us if you need any help about our product or service.