22.2V 4000mAh ( Only Fit Type B ) Li ion Vacuum Battery for Dyson DC35, DC45 DC31, DC34, DC44, DC31 Animal, & 2.5mAh and 3.0mAh|Replacement Batteries| - AliExpress
Dyson warranty is godly... my 1.5 year old v7 dyson broke and they sent me new everything! Now i have dupe tools and batteries. Protip the battery can be swapped and charged