What are the differences between dry batteries and hydro batteries? Which is better?

The general shell of a water battery is transparent, and the electrolyte inside can be seen from the outside. Generally, a small-capacity battery is a dry battery, and a large-capacity battery above 120AH is a water battery. The water battery is well maintained, and the service life is longer than that of the dry battery. If the maintenance is not good, the service life is shorter than that of the dry battery! The most feared of a water battery is the lack of liquid. Regularly observe the battery level. When the battery is short, add distilled water or electrolyte in time (depending on the battery power, add electrolyte when the battery power is obviously insufficient, and charge it in time). Apply a little grease (butter) to both ends of the battery + and-electrodes to prevent corrosion at both ends of the electrodes and prolong the service life of the battery! Advantages of hydro batteries: strong instantaneous large current discharge capability, strong power, and strong load capacity. Disadvantages of water batteries: poor endurance, poor deep discharge capacity, and poor deep cycle life. The water battery contains a lot of water, it is troublesome to charge, it is heavy, and the price is high, but it has a large capacity and is suitable for heavy cargo use! Because the battery contains a lot of liquid, it is usually called a water battery. The liquid in the water battery is relatively easy to lose, and it is necessary to frequently replenish water, so it is also called a maintainable battery. This kind of battery is mostly used in automobiles and motorcycles, and the discharge current is relatively large! So it is also called traction battery, start the battery. Electrolyte will be lost during the charging and discharging process of water battery, so it needs to be maintained. Improper maintenance will damage it. Dry battery scientific name valve-regulated closed lead-acid battery, the shell is opaque, and the liquid can not be seen when opening the filling hole, almost no maintenance, worry and effort! The advantages are: no maintenance in normal use, strong deep discharge capability, strong endurance, long deep cycle life, less dry battery water, convenient charging (dry battery), light weight, moderate price, but small capacity, suitable for light load use! Dry batteries are also regular maintenance-free batteries used in mainstream cars and motorcycles. This kind of battery can be used directly after being sold, and no water should be added. Do not check the electrolyte during use, do not add water, and do not open the sealing cover under any circumstances. This type of battery has a very low self-discharge capacity and is suitable for long-term storage. This is the real maintenance-free battery, and the service life will be longer. The cost of recycling waste batteries is high, and the company's processing costs are high, so the price is relatively high. It depends on what kind of electric car you have, whether it is for freight or for transportation? If it is freight and there is enough space in the car, then a large-capacity battery must be installed. A large-capacity dry battery will be very expensive. From the perspective of cost performance, water will be chosen. If it is a scooter, it must be dry, and dry batteries are also divided into lithium-ion batteries and maintenance-free batteries. Lithium-ion batteries are more expensive and lighter. They can be used on mobile phones without too high capacity and volume requirements. Just use the maintenance-free ones, which means you can choose the ones that are popular in the market. Maintenance-free battery: Now the concept of maintenance-free battery is confused, especially for motorcycles (some low-end car manufacturers also do the same). The maintenance-free battery mentioned by the manufacturer is only after you add electrolyte for the first time, do not add electrolyte for 1-3 years in the future. (The normal life of domestic batteries is within 2 years, and the joint venture brand is slightly longer). In fact, this is a water battery. Better yet, it is a sealed lead-acid battery. It cannot be said to be a real maintenance-free battery at all. This type of battery is actually low-cost and of average quality. In the past, domestic batteries used a white and somewhat transparent case, and the electrolyte inside can be seen; but now they are all smart (actually from those joint ventures) and all use opaque ones. It is packaged in a black outer shell, anyway, ordinary consumers can't see the inside, so they are sold as dry batteries, and sold at high prices under the brand of high-end goods. Especially those so-called original joint venture batteries, Guangyang, Uni-President and so on. Add water the first time you use it, that's a water battery! There is no excuse! Electric bicycles and electric motorcycles have become important means of transportation in large, medium and small cities, and are generally accepted by people. Compared with traditional bicycles, electric bicycles are generally more expensive, so the service life has become the most concerned issue of people. In fact, the battery is one of the core components of the electric bicycle, and the service life of the battery determines the service life of the electric bicycle to a large extent. It is known that the batteries used in electric vehicles are all lead-acid batteries! The dry battery is said to be cheating! Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to prevent lithium-ion battery packs from exploding?