Solar batteries can use lead-acid batteries, lithium batteries, etc. Ordinary batteries mainly refer to the traditional liquid-rich lead-acid batteries, sealed lead-acid batteries, in the current market solar batteries are mainly used in lithium-ion batteries, in the choice of solar batteries, we recommend that you use lithium iron phosphate batteries, the following will give you an introduction to the solar battery and ordinary batteries:
1. Difference in design purpose
Solar battery is a kind of battery specially designed for storing excess electricity generated by solar energy system, mainly used for power outage or rainy weather, solar panels can not supply power to the load, use the electricity from the solar battery to supply power to the load. Ordinary batteries are a general-purpose energy storage device used in a variety of applications, such as: automobiles, back-up power, electric bicycles and so on.
2. Difference in Depth of Discharge
The depth of discharge of a battery is the percentage of the rated capacity that the battery can be safely discharged. The depth of discharge of a solar battery can be up to 80% or more, which is equivalent to having a larger energy store, and the solar battery can be flexible enough to meet high-demand power needs, allowing the use of the maximum amount of stored energy without a significant impact on the battery. Ordinary batteries have a maximum depth of discharge of 50% and are generally below 50%. All solar battery have a superior depth of discharge, but care should be taken to protect the battery from frequent deep discharges.
3. Difference in maintenance
Solar batteries are maintenance-free batteries, only need to carry out daily appearance checks, ordinary batteries need to be filled with electrolyte or distilled water, etc., the maintenance cost is relatively high compared to solar cells.
4. Difference in capacity
Battery capacity is a measure of how much energy can be stored in the battery, the capacity of the solar battery is higher than ordinary batteries, which means that the solar battery can store more energy, can be used for the load to make the power longer.
5. Difference in service life
The service life of solar battery can reach about 8 years, while the service life of ordinary battery is about 2 to 5 years, and the number of times of recycling is 500 to 1000 times. The service life of solar cells is much higher than ordinary batteries, if properly maintained in the use of the process, the service life of solar battery is also high, so solar battery are more suitable for solar energy systems.
6. Difference in compatibility
Solar batteries are closely linked to the solar power system to better respond to the function of solar energy, and solar batteries can effectively manage the intermittent energy of solar panels to ensure that excess energy is stored and provided when needed. Ordinary batteries are very versatile but are not compatible with solar power systems.
7. Differences in safety
Solar batteries have a BMS (Battery Management System) inside, which prevents the battery from malfunctioning, such as over voltage, under voltage, abnormal temperature, abnormal charging, and when the battery has these types of malfunctions, the battery management system is capable of suspending the battery’s function to protect the battery. Ordinary batteries do not have a battery management system, in the use of the process can only be human intervention.
8. Difference in the cost of use
Solar batteries are more expensive, ordinary batteries are cheaper, but the choice of batteries should be considered, not just look at the price of the battery.
9. The difference in charging time
The charging speed of solar batteries is about 2 hours, and the charging speed of ordinary batteries is about 6 hours, using solar batteries can save time.
Summarize:
Solar battery and ordinary batteries are two different options to provide backup power for solar energy systems, we recommend the use of solar batteries (lithium iron phosphate batteries), which can maximize the solar energy system to meet a variety of needs, and has a high degree of security, long service life and other advantages, the specific choice of what type of batteries, you need to be based on their own needs.
