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The battery plays a significant role in the use of a car. If it cannot supply power normally, the engine and the electrical system in the car will also have problems. Therefore, car owners should take good care of it carefully in order to avoid the embarrassing situation of the engine not starting or suddenly stalling halfway. In fact, car owners only need to spend one or two minutes maintaining the battery every time they check the engine.

This issue can be divided into two categories: self discharge after prolonged use and no self discharge

1. A water battery that will self discharge after prolonged use. Due to the imperfect process of the internal partition, long-term charging and gas evolution bubbles wash the electrode plate, causing the active substances on the positive electrode plate of the battery to fall off, scatter in the form of dust and deposit at the bottom. Slightly shaking the electrolyte results in a turbid state, forming a micro short circuit at the bottom or even a direct internal short circuit, leading to self discharge and accompanied by a certain degree of capacity reduction. If a regular charger is used (a charger that causes the battery to frequently charge and bubble), usually after one year, this type of water battery will produce self discharge, which means it will run out of battery on its own. The solution is to continuously rinse the turbid liquid in the battery after discharging it until it is clear, then add 10% concentration sulfuric acid, charge it again, and it can be used after self discharge disappears.

2. Water batteries that do not experience self discharge, due to the perfect partition process, do not have self discharge problems. Under a regular charger, the service life is approximately 2-5 years. Depending on the situation of the charger, the poorer the charging quality, the shorter the lifespan.

From the above, it can be seen that charging is the decisive factor in determining the service life of a battery. (Explanation: Some friends believe that the more severe the bubbles during battery charging, the better, but in fact, they are seriously wrong! The more severe the bubbles, the greater the damage to the battery; some friends think that adding tap water is also acceptable, but in fact, they are wrong! Cleaning the battery is also acceptable, but adding it to it is not good and can be harmful. The order of best to worst water is: ultra-high purity water>distilled water>purified water)

Therefore, it is recommended to use a "long-life battery/electric vehicle charger". When charging, the battery loses very little gas and water, and sulfur is eliminated at the same time. The battery can have a service life of more than 5 years and maintain a conservative capacity of over 70%. One condition is that it cannot be short of water. The official product will be launched in 2 months. Friends who need it can search online. Thank you!

The lifespan of a typical water battery is three to four years.

PoisonApple? December 22, 2017 16:44? 6578 readings 0

\Since the 1990s, due to the increasing demand for high-energy, long-life energy that can be used in seawater, research on aluminum water batteries has officially begun. By the first decade of this century, relatively complete batteries had been successfully manufactured. At the Shanghai International Disaster Reduction Exhibition, which opened on October 10, 2012, some specialty products powered by water batteries have emerged.

Water battery is a type of battery that uses water as a raw material to generate electricity. In addition to the solid materials it contains, this type of battery can generate electricity by adding water. Since the 1990s, due to the increasing demand for high-energy, long-life energy that can be used in seawater, research on aluminum water batteries has officially begun. At the Shanghai International Disaster Reduction Exhibition, which opened on October 10, 2012, some specialty products powered by water batteries have emerged. Compared with lithium-ion batteries, water fuel cells have similar charging time and several times larger capacity, so the standby time of mobile phones can be extended to several weeks or even one or two months, and call time can no longer be calculated in hours.

Method of making water batteries

1. Rod type battery: Take a charcoal stick with an opening at one end, then take a napkin and wrap it tightly around the charcoal stick. Wet it with saturated salt water, then take an aluminum foil and wrap it tightly around the charcoal stick. Use a battery clip to clamp one end of the charcoal stick at the opening and one end on one pole of the motor. Use another battery clip to clamp one end on the aluminum foil and one end on the other pole of the motor. At this time, the motor rotates and the voltage is about 0.8v;

2. Take an aluminum foil can with high-quality batteries, cut off the lid with scissors, roll it into a cylindrical shape with sandpaper (facing outwards), grind off the adhesive layer inside the can, then take a napkin tightly against the can wall, pour in some saturated salt water to soak it in the napkin, insert a charcoal stick, and fill it with crushed charcoal around it. Use a wooden stick to compact it until it is full. Use one end of the battery clip to clamp it on the opening of the charcoal stick, one end to clamp it on one pole of the motor, another end of the battery clip to clamp it on the aluminum foil, and one end to clamp it on the other pole of the motor. At this time, The motor rotates with a voltage of approximately 1.5V.

How to repair a water battery

Motorcycles, electric vehicles, and children's cars are all equipped with water batteries (batteries with sulfuric acid). Sometimes, these cars cannot be charged after being left at home for a year or several months. According to the person selling the battery or repairing the car, the battery is broken and a new one needs to be purchased. However, the new one costs over 100 yuan, while a simple repair only costs a few yuan.

Tools/raw materials

Water battery to be repaired

Battery replenishment solution (dilute sulfuric acid 3% solution)

Method/Step 1

Firstly, check if the charger is intact. You can test it with a light bulb (a multimeter would be even better). Test whether the two output clamps have electricity. If they are intact (if they are broken, quickly find a good one), charge the battery (positive to positive, negative to negative) for more than 1 hour, and check if the battery has voltage. If the voltage is too low, it is preliminarily judged that there is a problem with the battery.

Method for Making Water Batteries How to Repair Water Batteries

Open the middle cover plate of the battery, which contains six to eight small bubbles. Remove them and check if the electrolyte inside overflows the absorbent sponge (if the battery casing is semi transparent, you can light up the light on the back of the battery to check).

Method for Making Water Batteries How to Repair Water Batteries

Purchase battery replenishment solution (usually 3% dilute sulfuric acid, usually 2-3 yuan per bottle, enough for one battery to use. Use a syringe to inject from the small hole in the middle above the battery until it overflows half a centimeter above the absorbent sponge. Regular replenishment can help extend the battery's lifespan.

Method for Making Water Batteries How to Repair Water Batteries

After completing the fluid replenishment, charge the battery for 12 hours with a voltage of 15V. Generally, a charger for an electric fish machine is sufficient. (If the battery has no electricity at all, a high voltage (higher than 15V, such as 20V, after connecting the positive and negative poles for 1-2 seconds, disconnect 3-5 times) can be used to activate the battery, and then charge it with 15V.)

After the above repairs, most batteries can be used, with a lifespan of 2-3 years (commonly used lifespan). If left unused for a long time, they are not as easily damaged.

matters needing attention

The power on time during activation should not be too long.

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