1. Compatible: This lithium battery adapter is suitable for V6 SV03 SV04 SV09 DC62 DM18DSV6 vacuum cleaners. Please confirm the model before use. 2. Applicable: This battery adapter allows the use of 18V batteries, and most MISUMI batteries can be replaced with V6 batteries. 3. Overload protection: Standard built-in over-discharge, over-voltage, over-current, and over-heat protection, safe and reliable, you can use it with confidence. 4. Replacement parts: This battery converter can be used for replacement or repair, replace damaged original parts and extend their service life. 5. Simple installation: The battery adapter is easy to install and remove. There is no need to remove the adapter when the battery is out of power. Just take out the battery and charge the battery. It can be easily installed and fully charged.