CyberPowerST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black

CyberPowerST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black

Q: Does the unit turn back on, when power is restored (battery depletion), or do you have to manually turn it back on?

This is tricky. (1) If the battery still has charge left when the electricity is back online, then the UPS will turn back on. (2) If the battery is depleted when the electricity is back online, then the UPS will NOT turn back on, the button must be manually pressed. PLEASE NOTE, almost all UPS products from Cyberpower, APC, Amazon, etc. consume battery power just to run the AC/DC inverter, when running off battery. This means that even if you are powering a very low load device like a clock, it will not last. The battery will die much sooner than expected. I tested the Cyberpower 425 with Zero Load, and the battery depletes after only 5.5 hours.

Q: Does this have a replaceable battery?

The battery in the ST625 definitely is replaceable. I have one; the instructions include a sheet explaining how to replace the battery; I've opened the battery compartment (one screw, door slides off); and found at least one replacement here at Amazon (https://www.amazon.com/CPS5-5-12-Brand-Compatible-Replacement-Battery/dp/B01HOXT5NI/ref=sr_1_41?crid=213ZRHES2XHEP&keywords=12v+5ah+battery&qid=1571426727&sprefix=12v+5ah+ba%2Caps%2C236&sr=8-41). The battery is 12V 5AH (for the ST625). It's low-profile, so many other batteries of the same voltage/AH will not fit. The Cyberpower battery ID is: CPS5.5-12 (12V 5AH).

Q: Is there any way to turn off the beeping sound when power is lost?

From the manual: Alarm setting: The audible alarm can be turned OFF or ON by quickly pressing the POWER button twice. The default setting is for the Alarm On. To turn the Alarm Off, quickly press the power button twice. You will hear two short beeps when the Alarm is turned off. To turn the Alarm back ON, quickly press the power button twice. You will hear a single short beep when the Alarm is turned on..... *When the Alarm is turned off, there will be no audible notification when the UPS reaches a low battery state.

Q: If I am charging a phone, how long can it stay?

when drawing 5w the unit will last 469 minues.

4.5/5

Product ID: 83812286

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Details

Brand
CyberPower
Battery Cell Composition
Sealed Lead
Product Dimensions
15.3"D x 9.5"W
Voltage
12 Volts
Color
Black

⚡900VA/500W

🔋2 USB Ports

🔌12 Outlets

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Description

Stay Powered, Stay Productive! ⚡

CHARGE ON THE GO - 2 USB ports delivering 2.1 amps for your devices.
PEACE OF MIND WARRANTY - 3-year warranty with $125,000 equipment guarantee.
VERSATILE CONNECTIVITY - 12 outlets, including 6 battery backup and 6 surge protected.
ECO FRIENDLY EFFICIENCY - GreenPower design reduces energy consumption.
POWER UP YOUR PRODUCTIVITY - Experience uninterrupted power with 900VA/500W backup.

The CyberPower ST900U Standby UPS System is a compact and efficient uninterruptible power supply designed to protect your home office and entertainment devices. With 900VA/500W capacity, 12 outlets, and 2 USB charging ports, it ensures your devices stay powered during outages. Its GreenPower technology minimizes energy use, and it comes with a 3-year warranty and a $125,000 connected equipment guarantee.

Specifications

Material Type	Plastic
Battery Cell Composition	Sealed Lead Acid
Output Voltage	1.2E+2 Volts (AC)
Runtime	15 minutes
Battery Average Life	3 years
Output Wattage	5E+2 Watts
Wattage	500 watts
Connector Type	NEMA
Number of Outlets	12
Frequency Range	47 – 63 Hz
Maximum Power	5E+2 Watts
Voltage	12 Volts
Amperage	2.1 Amps
Form Factor	Compact
Color	Black
Item Weight	7.7 Pounds
Item Dimensions D x W x H	15.3"D x 9.5"W x 4.4"H

Does the unit turn back on, when power is restored (battery depletion), or do you have to manually turn it back on?

Does this have a replaceable battery?

Is there any way to turn off the beeping sound when power is lost?

If I am charging a phone, how long can it stay?

Common Questions

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TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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The product exactly matches the description. Very satisfied with my purchase.

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CyberPowerST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black

Details

Description

Specifications

Common Questions