The 500W (250W in the UK/EU) G4 electric motor and 375Wh Lithium-ion battery is claimed to provide A variety of as much as 80km (50mi), but by far the most we managed to receive from it had been just 44km (27mi).
That https://maciesdmr213540.blogdigy.com/electric-bike-e-bike-for-dummies-44446033