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For stability reasons, we do not recommend using the device to power critical medical devices such as ventilators.
The device will generally emit some background noise during normal operation (such as fan noise or current flow). If the device is not operating normally, the noise may become noticeably louder or sound unusual. A sharp whistling, clanking, or grinding sound may indicate a malfunction. Please record a short video of the issue and send it to us so we can help identify and resolve the problem.
The DELTA 3 Max (2048Wh) main unit weighs approximately 44.75 lb. The DELTA 3 Max Plus (2048Wh) main unit weighs approximately 48.72 lb.
When within 1.64 feet of the device, the noise generated is less than 30 dB during 600W consumption and less than 38 dB during 1200W consumption. 30 dB is about the same volume as quiet whispering, or the environmental noise level of a quiet library or office. Most people find 30 dB to be a comfortable level of background noise.
1. Make sure the device (e.g., NAS device, PC, or laptop) supports UPS functionality. 2. Use a data cable to connect the USB-C-140W output port of the portable power station to the USB port of the device (supports USB 2.0 protocol). 3. After the connection is successful, go to the settings page for the device (e.g., NAS) and adjust the relevant settings.