A 2013 Ford Focus electric battery upgrade can cost anywhere from $11,000 to $15,000. However, Ford offers a comprehensive 8-year or 100,000-mile (whichever comes first) electric battery warranty. Before considering battery upgrade costs, check to see if your battery is still covered under warranty.
Many 2013 Ford Focus owners have had their original battery repealed with a 33.5kWh battery under warranty. Upgrading to a larger battery not only increases your Focus’s power, but it can also increase the driving range.