Think Crucial Replacement for Dyson DC31 and DC35 22.2V 1500mAh Li-Ion Battery, Compatible with Part 917083-01 HIGH QUALITY VACUUM PARTS that leave you in control of your vacuum's destiny. Restore your old friend to like-new conditions! This battery will fit your Dyson DC31/DC35 perfectly. EXACTING DESIGN TO FIT YOUR LIFESTYLE. This 22.2 Volt Lithium Ion Battery holds 1500 mAh of cleaning power. EASY TO INSTALL so you can get back to cleaning as soon as possible! Parts are easy to install with a basic set of household tools! SAVE YOUR WALLET! Parts made by Think Crucial are rigorously designed, tested, and engineered to be just as good or better than OEM parts. And you get them at a fraction of the cost with FREE SHIPPING on every order. Compare to Dyson Part Nos. 917083-01! GUARANTEED SATISFACTION because of a 30 day full money back guarantee and a trusted Think Crucial warranty. We are so confident in our products that we have no problem giving you every penny back if you're unhappy with your purchase. You won't see promises like that from big box brands!