InvestmentsTop Global NewsMarketsReal Estate Battery costs fall, make electric vehicles cheaper – BMI By financialnews_rlv83x - December 2, 2020 0 98 The cost of battery cells used for electric vehicles has fallen to an average of US$110 per kilowatt hour (kWh), making such cars competitive with those using internal combustion engines (ICE), according to Benchmark Mineral Intelligence (BMI).