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Product comparison · 2 uninterruptible power supplies (upss)

CyberPower ST625U uninterruptible power supply (UPS) Standby (Offline) 0.625 kVA vs CyberPower ST900U uninterruptible power supply (UPS) Standby (Offline) 0.9 kVA

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  • 47specifications compared
  • 9differ
  • 38identical
  • 2known for one product only

Key differences

  • Output power capacity
    • 0.625 kVA
    • 0.9 kVA
  • Output power
    • 360 W
    • 500 W
  • AC outlets quantity
    • 8 AC outlet(s)
    • 12 AC outlet(s)
  • Battery capacity
    • 5.5 Ah
    • 7.2 Ah
  • Typical backup time at half load
    • 9 min
    • 7.5 min
  • Width
    • 248 mm
    • 309 mm
  • Depth
    • 81 mm
    • 177 mm
  • Height
    • 147 mm
    • 78 mm

Side by side

Differences highlightedShow differences only
49 specifications
A

CyberPower

ST625U uninterruptible power supply (UPS) Standby (Offline) 0.625 kVA

Model ST625U

View product
B

CyberPower

ST900U uninterruptible power supply (UPS) Standby (Offline) 0.9 kVA

Model ST900U

View product
Features2 differ
UPS topologyStandby (Offline)Standby (Offline)
Output power capacityDiffers0.625 kVA0.9 kVA
Output powerDiffers360 W500 W
WaveformPseudo sinePseudo sine
Input operation voltage (min)96 V96 V
Input operation voltage (max)140 V140 V
Input frequency47/63 Hz47/63 Hz
Output operation voltage (min)120 V120 V
Output operation voltage (max)120 V120 V
Output frequency50/60 Hz50/60 Hz
Surge energy ratingKnown for one890 J
Transfer time (Line Mode to Battery Mode)8 ms8 ms
EMI/RFI noise filteringKnown for oneYes
Surge protectionYesYes
Power protection featuresOverloadOverload
Audible alarm(s)YesYes
Audible alarm modesAlarm when on battery, Fault, Low battery alarm, Overload alarmAlarm when on battery, Fault, Low battery alarm, Overload alarm
Socket circuit breakerYesYes
Ports & interfaces1 differ
AC outlet typesNEMA 5-15RNEMA 5-15R
Power plugNEMA 5-15PNEMA 5-15P
AC outlets quantityDiffers8 AC outlet(s)12 AC outlet(s)
USB portYesYes
USB 2.0 ports quantity22
USB port typeUSB Type-AUSB Type-A
Battery2 differ
Battery technologySealed Lead Acid (VRLA)Sealed Lead Acid (VRLA)
Battery capacityDiffers5.5 Ah7.2 Ah
Battery voltage12 V12 V
Number of batteries supported11
Typical backup time at full load2 min2 min
Typical backup time at half loadDiffers9 min7.5 min
Battery recharge time8 h8 h
Designidentical
Form factorCompactCompact
Product colourBlackBlack
Cable length1.5 m1.5 m
LED indicatorsPowerPower
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Storage temperature (T-T)-15 - 45 °C-15 - 45 °C
Operating relative humidity (H-H)0 - 95%0 - 95%
Operating altitude0 - 3000 m0 - 3000 m
Non-operating altitude0 - 15000 m0 - 15000 m
Packaging contentidentical
Cables includedUSB cableUSB cable
ManualYesYes
Certificatesidentical
Compliance certificatesRoHSRoHS
Sustainabilityidentical
Sustainability certificatesENERGY STARENERGY STAR
Safety regulation & standardsidentical
SafetyUL1778, cUL, FCC DOC B, CECUL1778, cUL, FCC DOC B, CEC
Weight & dimensions4 differ
WidthDiffers248 mm309 mm
DepthDiffers81 mm177 mm
HeightDiffers147 mm78 mm
WeightDiffers2.27 kg3.49 kg

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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