How long does a deep cycle solar battery last

One looks at the applicable environment, if the ambient temperature is high, then generally speaking, based on 25 degrees, every 10 degrees of increase, the life is reduced by half;

There are also charging conditions, if it is often undercharged, charged less than discharged, then it will soon be "broken", and the charging amount of a single cycle should be more than twice the discharge.

There is also the depth of discharge, for example, if only 30% of the actual capacity of the battery is released each time, it can be cycled more than 1500 times, that is, about 4 years, but if it is 80% every time, it will only be more than a year, and if it is 100%, it will be about 1 year.

Solar battery is the application of 'battery' in solar photovoltaic power generation, and there are four types of lead-acid maintenance-free battery, ordinary lead-acid battery, colloidal battery and alkaline nickel-cadmium battery. At present, the solar batteries that are widely used in China are: lead-acid maintenance-free batteries and gel batteries, these two types of batteries, because of their inherent "free" maintenance characteristics and less pollution to the environment, are very suitable for reliable solar power systems, especially unattended workstations.

Ordinary lead-acid batteries are mainly suitable for maintenance or low-grade occasions due to the need for frequent maintenance and large environmental pollution.

Although alkaline nickel-cadmium batteries have good low temperature, overcharge and overdischarge performance, they are only suitable for special occasions due to their high performance.

With the widespread use of solar photovoltaic power generation systems, the battery has attracted more and more attention as a supporting battery.

Solar battery life.

1. Ordinary solar battery.

The plates of an ordinary solar battery are composed of lead and lead oxides, and the solution is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price. The disadvantages are low specific energy, short service life and frequent daily maintenance, and the service life is about 1 year.

2. Dry-charged solar battery.

Its full name is dry-charged lead-acid battery, and its main feature is that the negative plate has a high power storage capacity, and it can save the obtained power within two years in a completely dry state. When using, only need to add electrolyte, and it can be used after 20 -30 minutes, and the service life is about 2-3 years.

3. Maintenance-free solar battery.

Due to the advantages of its own structure, the consumption of electrolyte is very small, and there is basically no need to replenish distilled water during the service life. It also has the characteristics of shock resistance, high temperature resistance, small size, and small self-discharge. The service life is generally twice that of ordinary solar batteries.

There are also two kinds of maintenance-free batteries on the market, the first one does not need to be maintained after using the electrolyte at one time when purchasing, and the other is that the battery itself has been added with electrolyte and sealed when it leaves the factory, and the user can not add the replenishment at all, and the service life is about 4 years.

If you ask about a solar cell or a storage battery, these two parameters are different.

Solar cells are also called: monocrystalline silicon solar cells, which can generate electricity when there is light, but there is no electricity when there is no light, which can be used for 20 years.

Battery: When there is light, it absorbs the electricity sent by the solar cell, and when there is no light, it can be charged and discharged 500 times in 3 years.

It depends on what type of solar battery is used and what kind of solar equipment is used.

Our batteries are generally three to five years, and if they are well maintained, more than five years is no problem.

The solar battery life is about ten years, and it is easy to replace.

Solar cells, also known as "solar chips" or "photocells", are thin sheets of optoelectronic semiconductors that use sunlight to generate electricity directly. As soon as it is exposed to light, it can output voltage instantaneously and generate current in the case of a loop. In physics, it is called solar photovoltaic (photovoltaic, photolight, voltaics volt, abbreviated as PV), referred to as photovoltaic.

A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect. Thin-film solar cells that work with photoelectric effects are the mainstream, while solar cells that work with photochemical effects are still in their infancy.

Looking at his power generation principle, but the life span will not be extraordinary, and there are production quality problems, it will only be three or five years, and what we can use must not be the same as that used in the space station.

There are many factors affecting the life of the battery, such as temperature, the number of cycles, the state of charge and discharge, etc., most of the solar lithium batteries on the market are divided into two kinds, one is the ternary lithium battery, many manufacturers claim to be able to do 5 years, in fact, the number of cycles is generally within 1000 times, generally after 3 years the battery capacity is less than 80%, and then the attenuation is very serious.

There is also a lithium iron phosphate battery, the number of cycles is about 2000 times, but the low temperature effect of lithium iron phosphate battery is very poor, and it is generally best used in high temperature areas, with a life span of about 6-8 years.

This is a relatively advanced equipment, at this stage only solar manufacturers can give you the answer, how to calculate it is more difficult, but I have equipped you with such a device, the battery to 120A two.

1. But charge, but discharge.

2. Replenish electricity on long cloudy and rainy days.

3. Avoid recharging after discharging only a little charge often. A deep discharge is made at certain intervals.

4. After discharge, try to ensure that it is charged within 12 hours.