Manufactured by SBx Mobility | U004 | UL Certified replacement battery, These batteries are made of the highest quality materials making them safe and cost effective. Designed to quickly accept a charge using our UL Certied chargers. 4000 mAh capacity (144 watts) Dimensions are 57mm x 85mm x 135mm. 30 day warranty on repair ,, We offer the service to back up what we sell. And any parts that are ordered at the same time as a hoverboard, eBike or scooter will also ship for free. We repair all of our mobile electronic devices so you don't have to. Many other suppliers of hoverboards, eBikes and scooters will simply send you the parts and tell you to install them yourself but we will do any repairs for no charge as long as you bought the hoverboard from us and the part is warranty. Product information updated on 2024-02-27. This product can ship by Small Parcel