Why You Should Ditch Lead-Acid Batteries When Choosing UPS for Low-Power Devices

Small in size but big on power, this power solution is more reliable

In daily work, ensuring a stable power supply for low-power devices is equally crucial, whether it's cash registers, security cameras, or network equipment. Many users habitually opt for traditional lead-acid battery UPS as backup power sources. However, for low-power loads, this could be a misconception!

Why are lead-acid battery UPS unsuitable for low-power loads?

  1. "Over-light Load" Damages Battery Life
    When the UPS capacity is significantly greater than the load power (e.g., using a 3KVA UPS to power a 300W device), a power outage can lead to deep battery discharge, significantly shortening the lifespan of lead-acid batteries. Industry experts point out that such an application scenario, where the UPS's capabilities are underutilized, can actually cause premature battery failure.
  2. Bulky Size, Low Space Utilization
    Traditional lead-acid battery UPS units take up valuable space, which is highly unfavorable for low-power application scenarios. These scenarios often lack dedicated machine rooms, and devices are typically deployed in office spaces or even business areas.
  3. "Memory Effect" in Low-Current Discharge
    When lead-acid batteries supply power to low-power loads, low-current discharge can trigger a noticeable memory effect, accelerating battery capacity degradation.
  4. High Temperature Sensitivity
    The lifespan of lead-acid batteries decreases exponentially when the temperature exceeds 25℃. For instance, at 45℃, their lifespan may drop from 5 years to just 1-1.5 years. This is a fatal weakness for small devices lacking a constant-temperature environment.

A Better Solution: The Advantages of Lithium Battery UPS Shine Through

Lithium battery UPS units offer significant advantages tailored to the specific needs of low-power loads:

  • Unaffected by Light Loads: Lithium batteries have no memory effect, so low-current discharge does not affect their lifespan.
  • Compact Size: Compared to lead-acid battery solutions of the same capacity, lithium battery UPS units save up to 60% in space and reduce weight by 70%.
  • Doubled Lifespan: Their cycle life is 3-5 times longer than that of lead-acid batteries, reducing replacement frequency and costs.
  • High Depth of Discharge: They can be deeply discharged without damage, greatly improving battery utilization.

When it comes to lithium battery UPS units, we must mention HIGHIDEA , a brand that has focused on R&D for 15 years. As one of the early adopters of lithium battery UPS technology in China, its products use lithium iron phosphate cells with a cycle life of over 2,500 times. For low-power scenarios, HIGHIDEA has launched the LT series, which is compact in size and offers long battery life.

[Tip] Regularly performing charge-discharge maintenance on your UPS (recommended every 4-6 months) can effectively activate battery performance!