We compare tray dimensions against verified battery dimensions, applying a 2mm tolerance for cable management and straps.
Spacer Required: The battery is notably shorter than the tray, so a foam block helps prevent movement.
Voltage mismatch: The battery’s max charged voltage exceeds the car’s rated limit.
Hard case required: Some tracks require hard-case packs for safety and compliance.
Low voltage alarm recommended: The chassis may not be LiPo-ready, so extra protection is recommended.
Adapter needed: The connector type differs, so a rated adapter or re-solder is required.
We group compatible connectors, surface “fits with mod” only when an expansion-height path exists, and still recommend verifying wire exit clearance in photos.