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Rectangular black tower UPS with nine NEMA outlets and two USB ports

APC

APC BE850G2 UPS 850VA 450W 9 Outlets 2 USB

SKU CH-FB70-PAW2J MPN BE850G2

Battery backup and surge protector with 850 VA capacity, six battery-backed outlets, three surge-only outlets and two USB charging ports

  • Voltage version120 V
  • AC input voltage92–139 V
  • Input line frequency50/60 +/- 3 Hz (auto sensing)
  • Power inputNEMA 5-15P
  • Volt-ampere rating850 VA
  • Power rating450 W

VA 850 VA

  • 850 VA capacity keeps a workstation running during outages
  • 6 battery-backup outlets protect critical devices from power loss
  • 3 surge-only outlets shield peripherals from voltage spikes
  • 2 USB ports deliver up to 1.5 A for mobile charging
  • 354 joule surge rating guards connected equipment

Power for workstations and networking

The APC Back-UPS BE850G2 delivers 850 VA and 450 W of battery backup to desktop computers, wireless routers and gaming consoles. It keeps a typical workstation running through brief outages and powers networking gear for hours so internet access stays alive. Home offices and small businesses gain continuous operation during voltage dips and blackouts.

Stepped sine wave and limited runtime

The unit produces a stepped approximated sine wave at 120 V, which suits most switching power supplies but may not meet the needs of sensitive medical or laboratory equipment. At full 450 W load the battery lasts only 2 minutes, enough for a controlled shutdown but not for extended work. Recharging takes 8 hours, and the input window is 92 to 139 V with auto-sensing 50/60 Hz frequency.

Tower form with wall-mount option and spaced outlets

A lead-acid battery replaceable with the RBC17 cartridge sits inside a tower chassis that includes keyhole sockets for wall mounting in tight spaces. Nine NEMA 5-15R outlets are split between six battery-backed and three surge-only ports, spaced to accept transformer blocks without crowding. Two USB ports supply up to 1.5 A for phone or tablet charging while the UPS is on utility or battery power. Surge protection is rated at 354 Joules.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $127.99
Cheaper than about 88% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameAPC
Product lineBack-UPS
Model nameBE850G2
Ports & slots
Communication portsUSB
Power
Voltage version120 V
AC input voltage92–139 V
Input line frequency50/60 +/- 3 Hz (auto sensing)
Power inputNEMA 5-15P
Volt-ampere rating850 VA
Power rating450 W
Voltage output120 V
AC output frequency50/60 +/- 3 Hz
Power outlets9
Battery typeLead Acid Battery
Runtime on battery450 W: 2 min
Battery charge time8 hour(s)
Replacement batteryRBC17
AlertsAlarm when on battery : distinctive low battery alarm : overload continuous tone alarm
Surge protection rating354 Joules
Size & build
Product dimensions5.47 in × 12.87 in × 4.13 in
Product weight9.04 lb (4.1 kg)
Shipping weight4.99 kg
Package size414 × 191 × 168 mm
In the box
In the boxIncludes: USB cable, User Manual

Other versions of this model

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Questions about this item

How do I choose between the battery-backup and surge-only outlets on this BE850G2?

Plug critical gear such as a PC, router or modem into the six NEMA 5-15R battery-backup outlets so they stay running during an outage; use the three surge-only NEMA 5-15R outlets for printers, speakers or other devices that can lose power safely.

What does the 450 W rating mean for my actual equipment?

The 450 W limit is the maximum real power the UPS can deliver on battery; at that full load the unit provides about two minutes of runtime, giving you time to save work and shut down gracefully.

What does the USB interface on this UPS actually do?

The USB port supplies up to 1.5 A for charging phones or tablets whether the UPS is on mains or battery power, and it also enables management software to monitor status and trigger automatic shutdowns.

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