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frontpagedoublehelixx | Staff posted Yesterday 08:57 PM
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frontpagedoublehelixx | Staff posted Yesterday 08:57 PM

Amazon Basics 6-Outlet 400VA/255W UPS Battery Backup & Surge Protector

+ Free Shipping

$37

$53

30% off
Amazon
16 Comments 6,908 Views
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Deal Details
Amazon has Amazon Basics 6-Outlet 400VA/255W UPS Battery Backup & Surge Protector on sale for $36.84. Shipping is free.

Thanks to Deal Hunter doublehelixx for sharing this deal.

Details:
  • Standby UPS: 400VA / 255W battery backup; ideal for home networks, IoT devices, home entertainment
  • Runtime: ~6 minutes at half load (200VA/127.5W); ~1.5 minutes at full load (400VA/255W)
  • Outlets: 6 total NEMA 5-15R (3 surge-only, 3 surge + battery backup)
  • Protection: Guards against power surges; provides short-term backup for safe shutdown during outages
  • Compact design: Small footprint; 5-foot cord with right-angle, 45-degree offset NEMA 5-15P plug (120V, 50/60Hz)
  • Software: Power management software available for download
  • Load recommendation: Keep connected load below 80% of rated capacity for optimal performance

Editor's Notes

Written by SaltyOne | Staff

Original Post

Written by doublehelixx | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has Amazon Basics 6-Outlet 400VA/255W UPS Battery Backup & Surge Protector on sale for $36.84. Shipping is free.

Thanks to Deal Hunter doublehelixx for sharing this deal.

Details:
  • Standby UPS: 400VA / 255W battery backup; ideal for home networks, IoT devices, home entertainment
  • Runtime: ~6 minutes at half load (200VA/127.5W); ~1.5 minutes at full load (400VA/255W)
  • Outlets: 6 total NEMA 5-15R (3 surge-only, 3 surge + battery backup)
  • Protection: Guards against power surges; provides short-term backup for safe shutdown during outages
  • Compact design: Small footprint; 5-foot cord with right-angle, 45-degree offset NEMA 5-15P plug (120V, 50/60Hz)
  • Software: Power management software available for download
  • Load recommendation: Keep connected load below 80% of rated capacity for optimal performance

Editor's Notes

Written by SaltyOne | Staff

Original Post

Written by doublehelixx | Staff

Community Voting

Deal Score
+47
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Price Intelligence

Model: Amazon Basics Standby UPS 400VA 255W Surge Protector Battery Power Backup, 6 Outlets - Black

Current Prices

Sort: Lowest to Highest | Last Updated 1/25/2026, 07:30 PM
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Amazon$36.84

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Top Comments

w4ffles
902 Posts
292 Reputation
Two of the larger models are also on sale as a lightning deal
600VA/360W, 8 Outlets $45.45
800VA/450W, 12 Outlets $55.16

One comment says the 800VA model uses a 12V 9Ah SLA battery and those are only ~$25 to replace. The 800VA model would be my pick for this reason.

16 Comments

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Yesterday 10:45 PM
97 Posts
Joined Mar 2018
IndigoHorn7692Yesterday 10:45 PM
97 Posts
Have 2 would buy. Great for keeping internet up fi or a bit in bad weather
1
1
Yesterday 11:04 PM
839 Posts
Joined Nov 2020
ElatedSpaniel543Yesterday 11:04 PM
839 Posts
it's a pity it doesn't have DC out
1
Pro
Yesterday 11:18 PM
625 Posts
Joined Apr 2012
colonelcasey
Pro
Yesterday 11:18 PM
625 Posts
Is there a good replacement battery for this model?
Yesterday 11:45 PM
814 Posts
Joined Aug 2008
TrollPatrolYesterday 11:45 PM
814 Posts
Battery life seems to be an issue for some
Today 12:22 AM
16,785 Posts
Joined Jan 2004
chong67Today 12:22 AM
16,785 Posts
Quote from colonelcasey :
Is there a good replacement battery for this model?
Are the battery replaceable?
Today 12:54 AM
902 Posts
Joined Aug 2010
w4fflesToday 12:54 AM
902 Posts

Our community has rated this post as helpful. If you agree, why not thank w4ffles

Two of the larger models are also on sale as a lightning deal
600VA/360W, 8 Outlets $45.45
800VA/450W, 12 Outlets $55.16

One comment says the 800VA model uses a 12V 9Ah SLA battery and those are only ~$25 to replace. The 800VA model would be my pick for this reason.
3
Today 01:11 AM
237 Posts
Joined Aug 2006
lionhairToday 01:11 AM
237 Posts
This is a good size and fits inside a Leviton vented structured media cabinet in two directions. The larger models fit just one way requiring the use of additional measures to get the door to close.

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Pro
Today 01:31 AM
992 Posts
Joined Jun 2013
abstractedpudding
Pro
Today 01:31 AM
992 Posts
Quote from chong67 :

Are the battery replaceable?
Not really. There are some here on Slickdeals who will talk about repairing everything, but honestly this is a "use for 3-5 year" and recycle thing.

Edit: It looks like this one may have a replaceable battery, although they don't make it easy to get to.
Last edited by abstractedpudding January 25, 2026 at 07:01 PM.
1
3
Pro
Today 01:40 AM
992 Posts
Joined Jun 2013
abstractedpudding
Pro
Today 01:40 AM
992 Posts
Quote from IndigoHorn7692 :
Have 2 would buy. Great for keeping internet up fi or a bit in bad weather
Yep, this is the real use case for these. Perfect for keeping the WAPs/Switches/etc up for short power outages.
Today 01:48 AM
5,363 Posts
Joined Jun 2015
jtree1Today 01:48 AM
5,363 Posts
Quote from IndigoHorn7692 :
Have 2 would buy. Great for keeping internet up fi or a bit in bad weather
Hi long can this power a Modem/Gateway and a router?
1
Today 01:50 AM
237 Posts
Joined Aug 2006
lionhairToday 01:50 AM
237 Posts
Quote from abstractedpudding :
Not really. There are some here on Slickdeals who will talk about repairing everything, but honestly this is a use for 3-5 year and recycle thing.
There's no need to toss the UPS when a battery replacement will do. I am yet to come across a UPS that disallows battery replacements, although some of the Li-Ion ones may be built that way. Use the money to invest in a better UPS if that's what's desired.

Rufus shows several batteries sold by Amazon can be used for replacing the battery when it wears out.
1
Today 01:59 AM
230 Posts
Joined Feb 2010
Y0tsuyaToday 01:59 AM
230 Posts
Quote from abstractedpudding :
Not really. There are some here on Slickdeals who will talk about repairing everything, but honestly this is a "use for 3-5 year" and recycle thing.

Unlike some similar larger models, this one doesn't have a door to replace the battery as isn't designed with a user replaceable battery.
All these old-style UPS's use some sort of standard size 12V lead-acid battery. You can just unscrew the back to figure out the size then purchase the correct replacement battery.
1
1
Today 02:27 AM
1,176 Posts
Joined Nov 2004
B34NToday 02:27 AM
1,176 Posts
Quote from w4ffles :
Two of the larger models are also on sale as a lightning deal 600VA/360W, 8 Outlets $45.45800VA/450W, 12 Outlets $55.16One comment says the 800VA model uses a 12V 9Ah SLA battery and those are only ~$25 to replace. The 800VA model would be my pick for this reason.
Thank you. I ordered the 800va. I've replaced many APC 550-650VAs with SLA and once you find the correct generic replacement, it's really reasonable. Good to know those Amazon/Cyberpower are user replaceable. 800va for $55 is good.
Today 03:04 AM
1,405 Posts
Joined Oct 2017
kickerstarterToday 03:04 AM
1,405 Posts
Quote from w4ffles :
Two of the larger models are also on sale as a lightning deal
600VA/360W, 8 Outlets $45.45
800VA/450W, 12 Outlets $55.16

One comment says the 800VA model uses a 12V 9Ah SLA battery and those are only ~$25 to replace. The 800VA model would be my pick for this reason.
I second this. The 12V 9Ah battery is much more common compare to other sizes. There is also a LiFeO4 battery that comes in that size.

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Today 03:54 AM
2,756 Posts
Joined Mar 2016
webdoctorsToday 03:54 AM
2,756 Posts
Nice, got the 800VA one. But once it fails I'll probably just junk it for a LiPo model cause these lead acid ones just dont last long.

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