This is a kind of battery protection. In order to prevent the battery from being discharged or the telephone bottle from being damaged because the engine is not started due to long-term use of the vehicle electrical appliances. This is the normal design of many cars.

Foton Daimler Automobile has invested 9.9506 billion yuan with a registered capital of 5.6 billion yuan, and the ratio of Foton Motor to Daimler shares is 50:50. Production of "Futian Ou Man" brand medium and heavy truck products, with "Futian Ou Man" as the vehicle trademark, will produce Mercedes-Benz OM457 heavy truck engines with Euro V and 490 horsepower approved by Daimler in the future, with a vehicle production capacity of 200,000 vehicles/year and an OM457 engine production capacity of 45,000 vehicles/year.