This adapter is compatible with Makita 18V batteries and can be used to convert Makita 18V lithium-ion batteries into replacements for Dyson V8 batteries. With these two products, you can use your V8 vacuum cleaner as usual even if the main battery fails, without needing to purchase new batteries. Compatible with Makita 18V BL1860, BL1850, BL1840, BL1830, BL1820, BL1815, 194205-3, 194309-1, and 194204-5 series 18V batteries. Our battery adapter is designed specifically for Dyson V7/V8 vacuum cleaners and is compatible with the Dyson V8 series. It is perfect for the V8 Absolute, V8 Animal, V8 Fluffy, V8 Engine Head, V8 cordless vacuum cleaner, and V8 handheld vacuum cleaner. 【More Options, Longer Battery Life】This adapter allows you to use the aforementioned lithium-ion batteries in Dyson V8 cordless electric vacuum cleaners. This adapter is easy to install and remove, durable, safe, and easy to clean. It is designed for use with Makita 18V lithium batteries and is also compatible with Dyson V8 series vacuum cleaners. Simply remove it completely after use. (This adapter is only compatible with V8 series vacuum cleaners.) The V8 battery adapter features an LED indicator to show the battery status. Green indicates normal operation; red indicates low power. Made of high-quality plastic for durability. Color: Gray-black Material: Plastic Package Contents: 1 x Adapter