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There are three types of batteries commonly used: lead-acid batteries, nickel hydrogen batteries, and lithium-ion batteries. Lead acid batteries are commonly used batteries in electric vehicles, but their disadvantages are large weight, long lifespan, and memory effect. The advantage is low price. Lithium ion batteries are commonly used batteries for mobile phones, with advantages such as light weight, large capacity, long lifespan, and no memory effect. The disadvantage is poor stability (which is a safety issue). Nickel hydrogen batteries should be between the two. Due to the high voltage and current used in electric vehicles, lithium-ion batteries were originally the best choice, but due to safety issues, they have been difficult to successfully apply. Only some large foreign manufacturers have solved the problem by changing the internal components and adding protective circuits. So if you want to buy an electric vehicle with lithium batteries, you must look at the battery manufacturer.

The lithium batteries commonly referred to in daily life are actually lithium-ion batteries, which are commonly divided into cobalt lithium, manganese lithium, and iron lithium. Previously, the safety issue of lithium batteries was referred to as cobalt lithium, but with continuous technological progress, the current manganese lithium and iron lithium can fully guarantee safety issues. Otherwise, most of the electric tools, IT products, and other products that use lithium batteries around us would have become time bombs? Especially, lithium iron batteries will be the most likely high-efficiency batteries for electric vehicles in the coming years. For example, BYD's "iron batteries" for electric vehicles are actually lithium iron batteries.

The cycle life of lead-acid batteries is about 300 times, the cycle life of manganese lithium batteries reaches 500-800 times, the cycle life of iron lithium batteries reaches 2000 times, and Toshiba's new lithium batteries can reach more than 5000 times.

The charging time of lead-acid batteries is generally 6-8 hours or more. Lithium batteries use a dedicated charger, and the charging time is only 2-3 hours. Toshiba's new lithium battery can recover 90% of its battery power in just a few minutes.

The 48V10Ah lead-acid battery weighs approximately 17 kilograms, while the same capacity lithium battery weighs only 3-5 kilograms.

Lead acid batteries will experience a capacity decrease of over 40% in winter, while lithium batteries have good temperature adaptability. Even in winter at -20 ℃, their capacity decrease does not exceed 15%.

The harm of lead goes without saying much. Lithium batteries do not pollute the environment during production and use.

The most important cost issue is that in fact, the cost of lithium batteries is not much higher than that of lead-acid batteries. In the use of small energy storage batteries, lithium batteries are more competitive than lead-acid batteries. The current reason for the high cost of lithium batteries is that their technology is constantly improving, and old production processes are being phased out quickly. In order to recover costs in a short period of time, manufacturers must have a higher profit margin than other industries. When the technology matures and the industry scale forms, the price of lithium batteries will definitely be cheaper than lead-acid.

Of course, technology is constantly advancing, and the replacement of lead-acid with lithium batteries is not the direction of future batteries. Lithium batteries are not a revolutionary technological advancement, and the scientific community is more inclined towards the direction of fuel cells. In the foreseeable future, fuel cells may be the most ideal solution for human energy storage.

Lead acid batteries are safe, durable, and cost-effective, making them more suitable for civilian use. There are many types of lead-acid batteries available in the market, including power batteries for electric vehicles, UPS batteries, and automotive starting batteries. Choose the appropriate lead-acid battery according to your usage field, and do not mix them together. The lifespan of batteries with different functions used in different fields will be greatly affected.

The general warranty is one year. If your battery has been left unused for a long time and experiences sleep, it needs to be charged with a charger after adding electrolyte, which takes about 5-6 hours to use. For a dry load battery, it can be used after adding electrolyte and letting it stand for half an hour within about 90 days after leaving the factory, but it needs to be charged and activated after a long time.

Lead acid battery (VRLA) is a type of battery where the electrodes are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. In the charged state of lead-acid batteries, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; In the discharge state, the main component of the positive and negative electrodes is lead sulfate. The nominal voltage of a single cell lead-acid battery is 2.0V, which can discharge up to 1.5V and charge up to 2.4V; In applications, six single cell lead-acid batteries are often connected in series to form lead-acid batteries with a nominal voltage of 12V, as well as 24V, 36V, 48V, etc.

Perhaps I have limited knowledge and have never heard of aluminum acid batteries. Lead acid batteries are safe, durable, and cost-effective, making them more suitable for civilian use. There are many types of lead-acid batteries available in the market, including power batteries for electric vehicles, UPS batteries, and automotive starting batteries. Choose the appropriate lead-acid battery according to your usage field, and do not mix them together. The lifespan of batteries with different functions used in different fields will be greatly affected.

1. After each use, try to fully charge it as soon as possible. Low power placement damages the battery.

2. Do not expose the battery to direct sunlight. Using it when it is too hot can easily lead to thermal runaway of the battery cell, and in severe cases, it may bulge and be scrapped.

3. When charging, discharging or using the battery, do not invert it. If conditions permit, it can be left on its side for more than ten minutes while charging, but it is important to avoid electrolyte leakage. This can mix the bottom electrolyte with the top repeatedly. Avoid electrolyte stratification.

4. When charging, float charging can be done appropriately (continue to use a constant voltage or small current of around 0.001C after being fully charged), which can effectively avoid passivation of positive and negative active substances.

5. If conditions permit, it is possible to overdischarge it appropriately. If it runs out of power, stop for about ten minutes and continue to discharge it. Then charge immediately, which is called deep discharge, which also effectively avoids passivation of positive and negative active substances.

6. Check if the electrolyte is dry (observe the electrolyte wetting and liquid level of the upper diaphragm under floating charge). Basically, users do not have this ability and condition.

After using lead-acid batteries for a period of time (several months), they can undergo a deep charge and discharge, and the capacity will increase. However, avoid frequent deep discharge, as frequent deep discharge can significantly damage the battery's lifespan.

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