Methods to extend the service life of lithium batteries.
Reasons for the short lifespan of lead-acid batteries
1. Move the charger casually, and the charger circuit is relatively small. During the vibration process, the welding interface is prone to breakage, or the internal parts are prone to drift, causing the entire parameter to change and unable to charge normally;
2. When lead-acid batteries are charged, lead sulfate forms lead oxide, which is then reduced to lead sulfate during discharge. When the concentration of lead sulfate in the electrolytic solution of the battery is too high or the static idle time is too long, small crystals will form, which will then attract the surrounding lead sulfate. This phenomenon is called sulfurization. The main mechanism leading to the failure and damage of lead-acid batteries is that the battery itself cannot avoid sulfurization;
3. Most car controllers have a speed limit plug, and some manufacturers or dealers simply remove the speed limiter, which can attract customers who value speed and reduce costs. Such cars have a very high current when driving at high speeds, which can seriously shorten battery life;
4. The effect of sulfuric acid concentration: An increase in acid density is beneficial for the positive electrode plate capacity, but the self discharge of the battery increases and the corrosion of the grid accelerates, which also promotes the loosening and detachment of lead dioxide. As the acid density increases in the battery, the cycle life decreases;
5. The effect of discharge current density: As the discharge current density increases, the lifespan of the battery decreases because under high current density and high acid concentration conditions, it promotes the loosening and detachment of the positive electrode lead dioxide.
Methods to extend the service life of lead-acid batteries
(1) Fully understand the operating conditions of the battery during the high-temperature season and the changes throughout its entire service life. Do not place the battery in an overheated environment during use, especially when charging, keep it away from heat sources and maintain good ventilation in the charging environment;
(2) Take measures to suppress sulfurization: use fast sharp pulse front charging and discharging pulses, and use their high-order harmonics to resonate with large lead sulfate crystals to eliminate sulfurization of the battery during the charging process;
(3) Maintain the cleanliness of lead-acid batteries, promptly clean the dust, dirt, oxides on the terminals and wire ends, electrolyte at the filling port, etc. on the lead-acid batteries, keep them clean, and prevent them from discharging on their own;
(4) Protect the charger: generally, the instructions of regular lead-acid batteries have detailed protection methods for the charger. At present, the charger on the market has a high vibration resistance design, so it is not necessary to move the battery at will. If necessary, it must be packed with foam first to prevent the internal electrical appliances from being displaced by external vibration and affecting the use;
(5) If the battery is used regularly, it is best to charge it every day to keep it in a shallow cycle state, which can increase the battery's lifespan. Because the indicator light of lead-acid batteries will light up approximately 97% to 99% of the time, even if the indicator light is already on, try to charge it for as long as possible.
