A Chinese company is selling upgraded battery modules for the aging BMW i3. The company claims its energy-dense pack can double its original driving range. The BMW i3 is a great little electric ...

The BMW i3 debuted on the market in late 2013, one of the brand’s first electric cars. Also available with an optional range-extending engine, early models featured a 60 Ah battery providing up ...

The motor couldn’t power the wheels directly, but could help charge the battery for longer trips. The late-production BMW i3s. The BMW i3 offered three different battery sizes during its production.