**Common Types of UPS Batteries and Their Replacement Cycles**
Different types of UPS batteries have varying replacement cycles. Below are some common types of UPS batteries and their recommended replacement schedules:
- **Built-in Lead-Acid Batteries**:
Typically last about 3 years. To ensure stable operation, it is recommended to replace them every 2–3 years.
- **External Lead-Acid Batteries**:
Have a relatively longer lifespan, generally around 3–5 years. It is advisable to replace them approximately every 3 years, though the exact timing may depend on actual usage.
- **Built-in Lithium Iron Phosphate (LiFePO4) Batteries**:
Usually last about 5 years. With regular maintenance, such as periodic charging and discharging, their lifespan can be extended.
- **External Lithium Iron Phosphate (LiFePO4) Batteries**:
Generally last between 5–8 years. With proper maintenance, they can even last 8–10 years.
- **Lithium-Ion Batteries**:
Lifespan may range from 5–10 years, though the actual longevity depends on the battery type and brand.