Start with the BBU Duty Profile
In-server BBUs, rack-level backup power supplies, and large UPSs have different power, duration, space, and communication requirements. Before starting the project, it should be clear what loads the battery system needs to support when the mains or main power supply is abnormal, how long it will last, and how it will cooperate with the superior power system.
Six key inputs
- Backup power and time:Continuous power, peak power, peak duration and target backup time.
- Voltage range:System nominal voltage, allowable operating range and cut-off conditions.
- Storage and circulation:Long-term standby, regular testing, daily cycle or mixed use.
- Temperature and heat dissipation:Rack environment, maximum temperatures, airflow conditions, and thermal management methods.
- Space and Maintenance:Module size, weight, interfaces, replaceability and monitoring needs.
- Documentation and Verification:Applicable specifications, test conditions, certification boundaries and project verification plan.
How to Shortlist Candidate Cells
When extremely short-term high-power response is required, compare the P series and applicable Safety Cell directions. When capacity, safety and storage conditions must be evaluated together, review the complete power curve and the Molicel INR-18650-P22S, Molicel INR-18650-P30S and Molicel INR-21700-P50S as candidate cells. Final selection remains subject to the applicable specifications and project testing.
