BYD bet battery may be a beautiful mistake

BYD's battery technology can not be described as advanced, its lithium iron phosphate battery and Tesla's ternary battery have their own advantages and disadvantages, the overall performance of the two is equal. BYD's lithium iron phosphate battery has an advantage

Methodology in board maintenance

introduction Because of the high price of the control system, when it fails, in order to emphasize economic benefits and save costs, the maintenance method is generally adopted. However, in the following cases, a new circuit board needs to be replaced: the circuit board has r