Suitable for 18V batteries, it is just converted to 18V lithium batteries to exchange for V8 batteries. With those two products, when the 1st battery is damaged, you need to use the v8 vacuum cleaner as typical instead of procuring a brand new one. Compatible with 18V BL1860 BL1850 BL1840 BL1830 BL1820 BL1815 194205-3 194309-1 194204-5 series 18V batteries. Our battery adapter is designed for the V7 V8 vacuum cleaner, which is well suited with the V8 series. It is terribly appropriate for V8 absolute V8 animal V8 fluffy V8 engine head V8 cordless vacuum cleaner V8 hand held vacuum cleaner. [More and operating time] This adapter allows the use of the listed lithium batteries on for V8 lithium cordless electric vacuum cleaner. It is simple to put in and disassemble, sturdy and safe, and straightforward to clean. Matched with 18V lithium battery, well matched for V8 sequence vacuum cleaners. Simply eradicate all of them after use. (The adapter is only relevant to V8 series vacuum cleaners) The V8 battery adapter is designed with an LED indicator smooth to reveal the battery status. The indicator gentle displays green, indicating standard operation; It exhibits red, which means there may be inadequate power. High quality plastic material, appropriate for long-term use. [Protection System] Sturdy design, effective plastic material. This battery adapter can tightly lock the vacuum cleaner and battery together without loosening or slipping. High temperature resistance, allowing you to paintings with peace of mind! Different batches, random label would not affect the use Colour:Gray-black Material:plastic Package Contents: 1 x Adapter Only the above equipment content, other merchandise are not included. Note: Light mirrored image and different exhibits may cause the colour of the thing within the photo slightly different from the genuine thing. The measurement allowed error is +/- 1-3cm.