Performance metrics indicate the BE425M is a point-of-use standby UPS engineered for a 255W maximum output. Technical specifications confirm a transfer time of 6-10ms, during which the unit transitions from utility power to its internal 12V 3.9Ah sealed lead-acid battery. The inverter produces a square-wave (simulated sine) output; material science analysis suggests this waveform is incompatible with high-draw AC motors or medical-grade equipment, as it can induce overheating or mechanical stress in such components.
Structural dimensions reflect an ultra-compact, wall-mountable footprint designed for integration with ISP modems and small networking stacks. The chassis utilizes a clamshell design with a dedicated bottom panel for battery replacement, extending the functional lifecycle of the unit beyond the chemical decay of the initial lead-acid cells. Standardized testing protocols show the unit operates silently during normal AC pass-through as it relies on passive thermal dissipation.
- Connectivity: 6 NEMA 5-15R outlets (4 battery backup/surge, 2 surge only).
- Protection features: Resettable circuit breaker, sacrificial surge suppression, battery health diagnostics.
The 425VA rating establishes a hard ceiling for connected loads; exceeding 255W triggers an immediate audible alarm and inverter shutdown. The unit is optimized for 45-60 minutes of runtime for standard low-power networking equipment, providing a stable temporal bridge during utility fluctuations.
For applications involving higher-draw desktop PCs that require automated voltage correction during brownouts, the APC BX1500M provides expanded capacity and Active Voltage Regulation.
Documentation for this device is categorized within the power backup solutions framework for decentralized hardware protection.
