CyberPower SX550U JP Uninterruptible Power Supply

Purchased new from Amazon in November 2024. It remained unopened until yesterday.
Although it is considered unused, due to the long storage period, I performed a one-time test to check the charge capacity as follows for this listing.

The method involved charging the unit for about 10 hours, then unplugging it and continuously watching a TV with a rated power consumption of 43W.
The result was that while the catalog's operating time is 56.1 minutes at 50W (4th photo), I was able to watch for 118 minutes continuously.

When watching a normal TV, the rated power consumption is around 60%, which for a 43W TV is approximately 25W.
At this time, if the battery is normal, it is calculated that it can be watched for about 56.1 x 2 = 112.2 minutes. Based on the actual result of 118 minutes above, there appears to be almost no degradation due to storage.


Shipping will not be possible from May 2nd to May 7th due to absence.
This item is listed from Okinawa and includes a battery, so it will be shipped by sea and land transport, which will take about a week (varying depending on weather conditions).


An uninterruptible power supply with an output capacity of 550VA, equipped with a USB port for checking the status on a computer (software download required).

- Model: SX550U JP
- Output Capacity: 550 VA / 330 W
- USB Port: 5V / 2.4A
- Input Voltage: 100V / 50/60Hz
- Output Voltage: 100V / 50/60Hz
- Accessories: Instruction Manual, USB Cable

Thank you.