At this stage, the batteries contained in electric vehicles that various manufacturers are trying to develop are basically batteries (mainly lithium-ion batteries) and fuel cells. Because the research and development cost and maintenance cost of fuel cells are too high (the maintenance cost of fuel cells is about three to four times that of batteries), it is not suitable for the development of electric vehicles at this stage.So let's not mention it for the time being, just talk about the lithium iron phosphate battery that was widely used at the beginning.
The service life of lithium-ion batteries on individual electronic products is usually 5 to 20 years, and the average is 8 years. At the original technical level, the service life of lithium-ion batteries on electric vehicles is only about 3-5 years.When the battery capacity on an electric vehicle decays below 80% of the initial capacity, the driving range of the electric vehicle will be significantly reduced. When the battery capacity decays below 70%, the battery must be replaced.For many current pure electric vehicles, the cost of the battery accounts for about 40% of the total cost of the car. In other words, the replacement of the battery is commensurate with the replacement of a small car.
If the electric bicycle charger is a deformed electric bicycle that travels less than 10km per day, the new battery can properly make up for the deionized water when the warranty period expires.For electric vehicles that travel 50km a day, the battery should be checked after 8 months, and the deionized water should be properly compensated, 3~4ml per grid, especially in summer. Remember to cover the safety valve after adding water.Those electric vehicles that often take people should be checked every six months or so, and they should be used for nursing care according to the situation of use.
Many users who use electric vehicles have invented that the positive battery is easily out of date, because the capacitance between the battery cells and the body is different, and the positive battery is damaged.While adding water, swap the position of the battery next to it with the position next to it, so that the battery takes turns to sit in the village.
There is no need to charge when the power is displayed at more than 80%. It is charged when there is a chance between 30% and 80%, and it must be charged if it is below 30%.
When accelerating, be gentle and not overloaded.If there is a pedal device, try to artificially assist when starting and going uphill.
The battery in the battery box should be tightly stuffed with paper, and the bottom should be glued with foam double-sided adhesive if possible to avoid battery vibration.
Perform a full discharge once a month, and then charge continuously for 12h.
When swapping batteries, the parameters of the charger should be checked frequently, and the battery should be matched with the charger.
Once the charger is turned to the green light, or the green light is turned as soon as it is charged, and the battery temperature rises abnormally when charging, etc., it should be checked immediately whether it is a charger problem or a battery problem.
For individual chargers that are not temperature compensated, in summer, a 6A10 two-tube is connected in series between the charger and the battery, and two 6A10 two-tube colloidal batteries are connected in series; for the rest of the battery life, the two tubes are shorted.
Insist that the vehicle's mechanical skills are in good condition, the tire pressure is sufficient, the lubrication is good, and the brake gaps and tightness are deformed.
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