It’s important to understand which battery your V11™ requires. Before purchasing, we recommend you follow our online troubleshooting to ensure a replacement battery is required. Please be aware Dyson V11™ vacuums use two types of battery. Some use a click-in battery while others use a standard screw-in battery. You will be able to tell by checking your machine where the handle meets the battery. If there is a large red button that releases your battery from the main body, then your machine will need this click in battery. If this isn’t the case, please proceed by selecting the standard screw-in battery.