How long will this UPS power my system when the power goes out?

The runtimes of any UPS will vary based on the amount of power required by your connected devices

Will the UPS automatically switch-off from the battery backup when power is restored?

Yes, when adequate power is restored to the UPS (and is within the operating voltage range of the UPS), it will revert to passing utility power to connected electronics

Will this UPS provide continuous power in the case of a power outage?

This Back-UPS has a typical transfer time of 6ms to 10ms to switch to battery power when the main power goes out. The transfer time is fast enough that most devices will not experience a power drop when the UPS transitions to battery power

Can I plug the UPS to an extension cord or does it have to be plugged in to a wall outlet?

In order for your UPS to get the best power available, it should be plugged directly into the wall outlet. Plugging your UPS into a surge protector may cause the UPS to go to battery too often, when it normally would remain offline

How long does the battery last, and what is the replacement battery for this model?

The internal battery of Back-UPS BE850G2 is User-replaceable, and has a lifespan of 3-5 years (depending on the usage and maintenance of the battery). When the battery is ready to be replaced, you can purchase APC Replacement Battery model RBC17

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Back-UPS 850VA / 450W UPS Battery Backup & Surge Protector, 9 Outlets, Type A Charger, BE850G2 Uninterruptible Power Supply for Home Office & Computer

Back-UPS 850VA / 450W UPS Battery Backup & Surge Protector, 9 Outlets, Type A Charger, BE850G2 Uninterruptible Power Supply for Home Office & Computer

Product ID: 203162617

Details

Battery Cell Composition
Sealed Lead
Brand
APC
Color
Black
Product Dimensions
4.13"D x x
Voltage
850 Volts

🔋850VA / 450W power backup

🔌9 outlets + 2 USB-A ports

🛡️354 Joules surge protection

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9053633₫

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Battery Cell Composition
Sealed Lead
Brand
APC
Color
Black

Description

⚡ Power up your productivity—never miss a beat with APC Back-UPS!

INSTANT STATUS ALERTS - Clear LED indicators and audible alarms keep you informed of power and battery health in real-time.
STAY CONNECTED LONGER - Up to 20 minutes runtime at 150W load—enough to save work and shut down safely.
PLUG PLAY CONVENIENCE - 9 well-spaced outlets plus 2 USB-A ports for seamless multi-device connectivity and charging.
PEACE OF MIND PROTECTION - Backed by a 3-year warranty and $75,000 connected equipment coverage for ultimate device security.
RELIABLE POWER WHEN IT COUNTS - 850VA / 450W capacity keeps your devices running through outages and fluctuations.

The APC Back-UPS 850VA / 450W is a compact, tower-style uninterruptible power supply designed for home and office use. It features 9 outlets (6 with battery backup and surge protection, 3 surge-only), 2 USB-A charging ports, and delivers up to 20 minutes of runtime at a 150W load. With 354 Joules surge protection, clear status indicators, and a user-replaceable battery, it safeguards your electronics against outages and power surges. Supported by a 3-year warranty and $75,000 equipment protection, it ensures reliable, uninterrupted power for your essential devices.

Specifications

ASIN	B085JJZDFK
Amperage	2.4
Battery Cell Composition	Sealed Lead Acid
Battery Cell Type	Sealed Lead Acid
Battery Charge Time	8 Hours
Best Sellers Rank	#14 in Computer Uninterruptible Power Supply Units
Brand	APC
Color	Black
Connector Type	NEMA
Customer Reviews	4.6 out of 5 stars 3,774 Reviews
Enclosure Material	1
Form Factor	Tower
Global Trade Identification Number	00731304413592
Input Voltage	120 Volts
Item Dimensions	12.87 x 4.13 x 5.47 inches
Item Dimensions D x W x H	4.13"D x 12.87"W x 5.47"H
Item Type Name	Uninterruptible Power Supply UPS
Item Weight	9.6 Pounds
Manufacturer	APC
Material	1
Maximum Power	450 Watts
Mfr Part Number	BE850G2
Model Number	BE850G2
Number of Outlets	9
Output Current	2.4 Amps
Output Voltage	850 Volts
Output Wattage	450 Watts
Power Plug Type	Type B - 3 pin (North American)
Product Dimensions	4.13"D x 12.87"W x 5.47"H
Runtime	2 minutes
Specification Met	UL 1778
Surge Protection Rating	354 Joules
UPC	731304413592
Unit Count	1.0 Count
Voltage	850 Volts
Warranty Description	3 years repair or replace
Wattage	450 watts

Reviews

D**E

20.03.2024

M**S

12.07.2024

D**R

17.03.2026

F**W

29.04.2026

T**R

11.05.2023

K**Z

26.12.2025

S**S

12.04.2026

C**O

25.04.2026

V**K

11.01.2026

B**N

13.10.2023

D**N

16.12.2025

L**A

30.11.2025

S**E

9.12.2023

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