Question 1

How long does a LiFePO4 battery last?

Accepted Answer

LiFePO4 batteries typically offer 3,000–6,000 charge-discharge cycles, far exceeding the lifespan of lead-acid or traditional lithium-ion batteries. GODE solar batteries support over 6,000 cycles, providing reliable service for more than 10 years.

Question 2

Are LiFePO4 batteries suitable for off-grid solar systems?

Accepted Answer

Absolutely. With their low self-discharge rate and long cycle life, LiFePO4 batteries are ideal for off-grid solar installations, whether for seasonal or intermittent use.

Question 3

LiFePO4 Battery vs. Lithium-Ion Battery: Which is Better?

Accepted Answer

LiFePO4 batteries are a type of lithium-ion battery. Compared to other lithium-ion batteries, LiFePO4 batteries are safer, support deeper discharge depths, have a longer cycle life, and feature low self-discharge, making them highly suitable for solar power systems and electric vehicles. However, NMC batteries hold advantages in energy density and low-temperature performance.

Question 4

Is it harmful to fully drain a LiFePO4 battery?

Accepted Answer

Generally, it is not recommended to fully discharge a LiFePO₄ battery. Although LFP batteries support a higher Tiefe der Entleerung (typically 80%–90%) compared to NMC batteries (about 70%) and lead-acid batteries (about 50%), repeated full discharges over time can accelerate capacity degradation.

The best practice is to avoid draining the battery to 0%, maintaining around 20% state of charge. This reduces stress from deep discharges and significantly extends the cycle life and overall longevity of LFP batteries.

Question 5

How does temperature affect the long-term performance of LiFePO4 batteries?

Accepted Answer

While LiFePO4 batteries can withstand a wide operating temperature range, prolonged exposure to extreme high temperatures can accelerate capacity degradation. The optimal operating temperature is recommended to be between 20°C and 30°C. Proper thermal management can ensure the battery's lifespan.

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