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The lithium solar battery used in the energy storage field typically requires more than 3,500 cycles, implying that the lithium battery for energy storage has a life span of more than ten years. The cycle number of a LiFePo4 solar battery is much higher than that of a lead-acid battery or a ternary battery, and it can exceed 7000 times.
How long is the cycle life of LiFePo4 batteries for solar?
There are many ways to store energy, and lead-acid batteries are one of them, but if we look at some specific areas, the time has come for lithium batteries to replace lead-acid batteries. Why is that? One big reason is that the lifepo4 solar battery has a longer cycle life than a lead-acid battery and does not require maintenance.
Cycle life refers to how many times the battery can withstand charging and discharging before the battery capacity drops to a certain value under a certain charging and discharging system. The cycle life of a LiFePo4 solar battery represents the number of cycles that can be charged and discharged before the battery's capacity drops to a certain level. According to the data, LiFePo4 solar battery generally achieves a cycle life of more than 5000 times.
Product parameters
| Model | HS-12.8V70Ah |
|---|---|
| Application area | Outdoor and indoor UPS and battery back up systems； Portable and cordless household appliances； Medical equipment； Motorcycles, toy cars； Camping trailers, RVs, etc. Lighting equipment, emergency lights, etc. And many other applications |
| Cell Type | LiFePO4 |
| Volt | 12.8V |
| Capacity | 70Ah |
| Charge Voltage | 14.6V |
| Maximum Continuous Charging | 70A |
| Maximum Continuous Discharge Current | 70A |
| Weight | 7.34KG |
| Size | 260*168*212mm |
The lithium solar battery used in the energy storage field generally requires more than 3,500 cycles, that is, the life span of the lithium battery for energy storage is more than 10 years. The cycle number of LiFePo4 solar battery is much higher than that of lead-acid battery and ternary battery, and the cycle number can reach more than 7000 times.
Although the purchase price of a LiFePo4 solar battery is two to three times that of lead-acid batteries, the long-term economic benefits are still much higher. In other words, if the cycle life of the LiFePo4 solar battery is long enough, even if the initial purchase price is a little higher, the overall price is still cost-effective.
The quality of the LiFePo4 solar battery mainly depends on its material. Generally speaking, the LiFePo4 solar battery with excellent quality has a long life, which can effectively reduce the cost of repair and maintenance, and also reduce the overall investment in the system.
How to calculate the LiFePo4 solar battery life?
The national standard stipulates the cycle life test conditions and requirements of lithium-ion batteries: charge for 150 minutes under a constant current and constant voltage mode 1C charging system at a room temperature of 25 degrees, and discharge under a constant current 1C discharge system to 2.75V as a cycle. The test ends when one discharge time is less than 36 minutes, and the number of cycles must be greater than 300.
The number of cycles of lifepo4 solar battery is not only affected by the way users use it but also related to the production technology level and material formula of the lithium-ion battery manufacturer.
