Author: Site Editor Publish Time: 2024-07-10 Origin: Site
When it comes to selecting the right battery for your needs, understanding the differences between lithium batteries, specifically LiFePO4, and lead-acid batteries is crucial. Their distinct characteristics make them suitable for different scenarios.
Lithium Battery (LiFePO4): Lithium iron phosphate batteries are renowned for their high energy density and longevity. Typically, a LiFePO4 battery boasts a cycle life of up to 2000 cycles. This means it can be charged and discharged many times before its capacity significantly degrades. Their capacity remains consistent over a longer period, making them ideal for applications requiring a reliable and long-lasting power source.
Lead-Acid Battery: In contrast, lead-acid batteries have a shorter cycle life, usually between 300 to 500 cycles. While they are less expensive upfront, their capacity tends to degrade faster with each cycle. This characteristic makes them less suitable for applications demanding frequent deep discharges and recharges.
Constant Power: The relationship between voltage and SOC (State of Charge) is directly dependent on the type of battery used. LiFePO4 batteries deliver a stable voltage throughout their discharge cycle, providing consistent power output. Lead-acid batteries, however, experience a gradual voltage drop as they discharge, which can affect the performance of the devices they power.
Temperature Performance: Lithium batteries excel in a broader range of temperatures. They are less prone to degradation in high temperatures compared to lead-acid batteries, which can suffer from reduced efficiency and lifespan in such conditions.
Weight: LiFePO4 batteries are significantly lighter than lead-acid batteries, often weighing 50-70% less. This weight advantage makes them easier to handle and install.
Storage: Lithium batteries have a low self-discharge rate, meaning they retain their charge for longer when not in use. Lead-acid batteries, however, have a higher self-discharge rate and require regular maintenance to keep them operational.
Installation Direction: LiFePO4 batteries can be installed in any orientation without risk of leakage, providing greater flexibility in design and placement. Lead acid batteries, due to some residual release of gas, need to be installed upright to prevent any potential venting problems.
Series and Parallel Connection: Both battery types can be connected in series and parallel to achieve the desired voltage and capacity. However, regular Lifepo4 and lead-acid batteries cannot be used in parallel in the same string.
For mixed usage, DFUN SmartLi Battery is recommended. The product is widely used as backup power for telecommunication sites. With a built-in intelligent Battery Monitoring System (BMS) and the bidirectional DC/DC converter, it can directly mix use with lead-acid battery in parallel to realize reuse and expansion of existing batteries, to provide stable backup power for applications like Telecom base station, Railway, Substation etc.
