Batteries and battery repair instrument repair instrument repair machine and battery and battery repair machine profits reason! ! ! ! 
 Currently cars, electric cars and other electric car batteries and other lead-acid batteries are the battery life of about one year. General market price of between 300-1200 dollars, so the battery electric vehicle users to use the annual cost to be 300-400 yuan. Shi-use section of the Company microcomputer repair instrument repair positive and negative ion battery Battery life increased 3-5 times its more than a year to save the cost of replacement batteries and battery in a few hundred dollars. 
 1. The owners repaired the old battery can be charged 100-200 dollars each. 
 2. The acquisition of used batteries (10-15 yuan each), after re-new the price of 300 yuan each after the sale or lease, warranty commitments to customers for three years 
 3. Trade-in, receive a set price of 300 yuan, three-year warranty to the owners commitment, three years less than 20 km mileage charge for free repair or replacement. 
 4. With electric cars and auto electrical repairs, our free training battery repair, battery technology and electric vehicle repair renovation technology. 
 Positive and negative battery repair microcomputer microcomputer positive and negative ion battery meter and repair machines from Beijing Daxing Branch Technical Institute's first exclusive research and development production, the trademark "festival official," If any units for sale section of positive and negative battery Shi card microcomputer microcomputer repair instrument and the positive and negative car battery repair machines and other products please contact us, to guard against counterfeiting. 
 Exclusive production, beware of fake, factory outlets, three-shifting, five-year repair kits, similar products, if any, beyond our reward one billion yuan.