With the popularity and use of electric bicycles, lead-acid batteries have entered the ranks of daily necessities, due to people's improper maintenance and use, often appear a variety of problems, the most common problem is the battery life is not long, battery bulge, the biggest and most dangerous problem is the battery fire explosion. Although the coefficient of lead-acid battery fire and explosion is not very high, it is also worth everyone's attention.
How to extend the service life of lead-acid batteries, prevent bulges and cause fires.
1, charge and discharge technology. The service life of lead-acid battery is very related to charge and discharge technology, especially the influence of overcharge and overdischarge on the service life of the battery is extremely serious. In order to ensure that there is no charge and over-discharge, the user needs to summarize and observe, and at the same time support the relevant methods to control.
2, timely water. After the lead-acid battery is used for a period of time, the electrolyte in the battery will lose water because of electrolytic evaporation, if not timely water supply, the battery capacity will decrease, it is difficult to reach the rated voltage when charging, then charging is easy to cause bulging and even fire. Especially in the summer and autumn high temperature season, timely water supply is especially important. After the battery lacks water, the electrolyte concentration will increase, which is also damage to the battery life. The supplemented water is generally used as battery special electrolyte, and distilled water can also be supplemented intermittently, but it must not be supplemented with tap water. When replenishment must be appropriate, when the electrode surface of the battery has a layer of water, it can not be filled, because the electrolyte is dilute sulfuric acid, the outflow of charging will lead to corrosion of the battery outside components, but also produce pollution. Battery hydration is the most direct method to prevent charging bulges, now some manufacturers on the market in order to prevent users from adding water, engage in a silicone battery, so that everyone is not convenient to add water, everyone away from this battery, this enterprise does not want to go far, let it disappear early.
3. Adjust your balance. The batteries in electric vehicles are in groups, and the capacity of each battery is required to be as consistent as possible, so as not to cause long-term overcharge and overdischarge between batteries. Balance adjustment should be carried out every three months to make it as consistent as possible. The adjustment method is measured with a multimeter, equipped with one or more 12-volt chargers, and a 100-watt incandescent lamp. The multimeter is used to detect the consistency of voltage, charge and recharge the battery with low voltage separately, and discharge the incandescent lamp with high voltage. This process is very time-consuming, but also requires hands-on ability and relevant professional knowledge, especially note: people who do not understand the relevant knowledge must not carry out this operation, because this process operation failure will be very dangerous. If the mind can design a simple balance regulator, I have designed it but do not have the accessories to do it. However, the market has this kind of balancer to sell, but the price is slightly expensive, and the effect has not been tested. There is also a way, in the case of conditions, a battery with a charger (for a single battery), every once in a while all connected to a single charge, so that the balance can be achieved, so that the operation is faster and more convenient.
4. Heat preservation and warming. In winter, when the temperature is below 15 degrees, the battery should be insulated. Low temperature is very harmful to the battery, the specific reasons do not say, here says how to heat preservation and temperature. Add a layer of electric blanket mat outside the battery, now there is a small electric blanket mat on the Internet, buy a package on it, it is best to choose adjustable power, use small power to heat the electric blanket, but be sure to pay attention to waterproof. If you connect another power plug (computer power cord computer connector) on the electric blanket mat, you can use the electric vehicle power supply to warm yourself when there is no external power supply emergency. When the battery is warmed, it must be noted that the evaporation rate of water is accelerated after the temperature is increased, it is necessary to check and replenish water in time, and it is best to check once a half month.
