China is recognized as an "electric vehicle country", according to the data, China's two-wheeled electric vehicles have more than 300 million ownership, such a huge number, there will be a problem, every day there will be a considerable number of electric vehicles failure, therefore, in the streets across the country, can be very common electric vehicle maintenance stores.
The parts with a relatively high failure rate of electric vehicles are batteries, which as the core components of electric vehicles, once the failure occurs, it directly affects the travel of the owner, but even so, the battery failure, to a large extent, is inevitable, especially the longer the electric vehicle is used, the more likely the battery is to fail, and if you go to the maintenance store, the merchant is generally recommended to replace the new battery, and frequent replacement of the battery, which is not environmentally friendly, but also brings economic losses to the owner.
An electric vehicle is used for too long, there are 3 common faults, including the battery's "water loss, crystallization, loss of power", they affect the battery storage, discharge, life, so that the electric vehicle does not run fast, running not far, but the lead-acid battery has a great advantage, that is, repairable, for these 3 common faults, there are also some repair methods, below, small connoisseurs for everyone to introduce in detail, after learning can be avoided, as long as the battery has a fault, directly replace the new battery.
<h1 class="pgc-h-arrow-right" data-track="34" >1, the repair method of "water loss"</h1>
The battery is composed of electrolyte, lead plate and other parts, of which, the only liquid is the electrolyte, it is fused by distilled water and sulfuric acid, used to store and discharge the battery, play an important role in conduction and chemical reaction, but when the battery is used for too long, the battery will appear "water loss" phenomenon, and the lack of water battery, will increase the sulfuric acid concentration, resulting in battery parts corrosion acceleration, battery capacity becomes smaller, crystallization, resulting in running not far, running fast and other issues appear.
The reason for "water loss": water will not disappear for no reason, it will disappear inside the battery, mainly because of high temperature evaporation, and the battery will produce heat when charging and discharging, which will inevitably cause the moisture of the electrolyte in the battery to be evaporated, and the electrolyte moisture of the general maintenance-free battery can be used for about 3 years, but if some car owners have bad car behavior, it will aggravate the battery water loss, and this time it is necessary to "replenish".
The step of "hydration": the operation of hydration is not difficult, the owner can complete it by himself, as long as distilled water or professional electrolyzed water is prepared, a syringe can be used for hydration operation.
Step 1: Open the upper cover of the battery and put the battery in place for the 6 safety caps of the hole;
Step 2: Inject an appropriate amount of distilled water (no more than 8 ml) with a syringe, cover with a safety leather cap and upper cap;
Step 3: Stand for 3 to 5 hours, until the distilled water and sulfuric acid are fully fused, after charging, you have completed all the steps of water replenishment, the battery due to lack of water caused by running not far, running fast, will be repaired and improved.
<h1 class="pgc-h-arrow-right" data-track="33" >2, "crystallization" repair method</h1>
Crystallization is one of the manifestations of battery aging, because the battery is in the working state every time, the process of charging lead sulfate will be reduced to lead, the process of discharge is sulfuric acid and the lead and lead dioxide on the positive and negative plates have a chemical reaction, generating lead sulfate and water, but if the charge is insufficient or not timely, it will cause lead sulfate to not be completely reduced to lead, resulting in sulfate, that is, crystallization, and crystallization will cause the plate to be unable to charge and discharge, and the battery life will naturally decline.
Causes of "crystallization": Common causes of cell crystallization include:
01 Excessive discharge, no timely replenishment of electricity;
02 Do not ride an electric car for a long time, nor do you charge it regularly;
03 The battery loses water, resulting in the battery plate is not fully covered, which will cause the crystallization of the battery to appear and intensify.
Repair method: There are 2 repair methods to remove or reduce crystallization, one is to repair the store, one is to try it yourself, here are shared with everyone;
Go to the store to repair, is through the professional pulse technology repair instrument, in the process of battery charge and discharge, release positive and negative frequency conversion particle waves, to remove the crystals on the battery plate, for serious crystallization of electric vehicles, this is a better way.
And if there is no professional equipment, you can use the "shallow cycle high current charging method" to achieve the purpose of eliminating crystallization, the operation mode is to use a large current within 5AH for charging, when the battery temperature reaches 40 degrees, this time to stop charging, in the discharge of 30% of the power, through the cycle operation, you can achieve the purpose of eliminating vulcanization crystallization.
<h1 class="pgc-h-arrow-right" data-track="32" >3, the repair method of "power loss"</h1>
Battery "power loss" is also a very common situation, especially with the arrival of winter, many car owners will choose other means of transport to travel, electric vehicles in the home shelved, if there is no habit of regular charging, the battery because of self-discharge, it will lead to "deep discharge", and if there is no timely replenishment of power, it will lead to power loss, and the loss of power will lead to vulcanization, the battery can not use the original charger charging and other consequences, and this is also a common situation, small connoisseurs for such a situation, Share 2 easy fixes;
Repair method 1: can identify the charger charging, because the loss of power leads to the inability to charge, mainly because the battery voltage because the loss of power is too low, the charger can not identify the voltage, can not complete the charging, this time the use of some can automatically identify the voltage of the charger, if not, you can go directly to the fast charging station, as long as the voltage is recognized, charging to the original charger can identify the voltage, you can solve the problem of not being able to charge.
Repair method 2: while turning on the headlights, while charging, when the battery "loss of power" leads to the inability to charge, there will be a charger flashing or for the green light state, this time open the headlights for charging, a few hours later, the battery will be activated, this time turn off the headlights, the battery is the green light charging state, this time the battery is full, the "loss of power" can not be charged is basically repaired.
<h1 class="pgc-h-arrow-right" data-track="25" > learn to charge, so that the source avoids running fast and not far</h1>
Of course, the fault repair of the battery can only be said to be a certain degree of repair, as long as it is a failure, after the repair will not reach the performance before the failure, therefore, the owner should not only learn the method of repair, but also should learn, from the source to avoid the battery failure of the charging method, for the battery "water loss, crystallization, power loss", small connoisseurs for everyone to share 3 correct practices, can greatly avoid the emergence of these 3 kinds of failures.
(1), avoid battery temperature more than 40 ° C charging, common include: riding the electric vehicle immediately charged, will make the battery temperature increase rapidly; battery charging for more than 12 hours, will be because the battery for too long to continue to work, so that the temperature rises; avoid charging in a high temperature and no ventilation environment, this situation is easy to make the temperature of the battery too high, resulting in electrolyte evaporation.
(2), when the electric vehicle riding ends, the battery will begin to appear because after the discharge, if you can not get timely replenishment of power, easy to lead to crystallization, therefore, when the power is less than 30%, to replenish the power in time, in addition, to avoid frequent charging is not full, unplug the charger.
(3), when the electric vehicle will not be used for a period of time, then, it is necessary to charge the electric vehicle regularly, according to the self-discharge speed of the electric vehicle, you can choose to charge once in 7 to 15 days, if you can not charge for a long time, you can disconnect the connection line before the battery, so that you can replenish the power once a month.
Conclusion: Although the durability of lead-acid batteries is not good, the reason why it can be applied for a hundred years, now with the impact of lithium batteries, it is still one of the mainstream batteries of electric vehicles, just because of its repairable characteristics, and as a car owner, do not waste this advantage of it, when the battery does not have a battery life, running up is not strong, you can "symptomatic repair", avoid frequent replacement of the battery, of course, if the battery is used for more than 3 years, there is a serious decline in endurance, the replacement is still to be replaced.
I hope the above can help you, pay attention to the electric vehicle connoisseurs, and share the information and views related to electric vehicles every day.