Ford Focus Owners Manual: Battery connection points

Using booster cables

CAUTIONS: Connect batteries with only the same nominal voltage. Always use booster cables with insulated clamps and adequate size cable. Do not disconnect the battery from the vehicle’s ...

Wheels and tyres

...

More about Ford Focus:

Ford Focus Plastic Components - Description and Operation
Exterior Plastics — Painted WARNING: Always refer to Material Safety Data Sheet (MSDS) when handling chemicals and wear protective equipment as directed. Examples may include but are not limited to respirators and chemically resistant gloves. Failure to follow these instructions may result ...