Razor Battery Adaptor for Razor Electric Vehicles Wiring harness for two batteries in 24V system. Compatible with Razor Electric Vehicles E200/E200S (Versions 8-12) and E300/E300S (Versions 5-10 & 12).compatible with e300 version 11.**Note: Razor model versions can be determined based on your 8-digit product ID code. The product ID code can be found on the battery cover and/or on the bottom of the frame. The last two digits are the version number (e.g. "01"=version 1, "02"=version 2, etc.)**Note This battery set is not compatible with the 2007 and newer Razor E200 & E300 scooters that come with a single connector battery with 3-Pins. **Note: Please confirm your Razor Model and Version number before ordering. See Chart image.