In two connected investments, General Electric has put $4 million into Think, a Norwegian electric car manufacturer, and $20 million into A123 Systems, which manufactures batteries that are used in the cars.

Both companies are already well funded. Think has taken over $80 million to date and A123 has topped $150 million (past coverage here). The new investment by GE makes it the single largest shareholder in the latter company.

A123 is also planning an IPO sometime in the next year, and Think is preparing to roll out the Think City in Europe.