Question about NRS Cyberpower CPS400AI DC AC Inverter 400W

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I think i may have hooked my cyberpower 400w power inverter up backwards on the car battery. it was only a split second, but now it doesn't seem to work. is this something that i can fix?

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Hi!!
This units have fuses, they are located right where the power wires come in and go out. With some luck, all the damage could be a blown fuse.
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Posted on Oct 01, 2010

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I mistakenly connected energy source at the AC inverter output .Inverter is 5KVA cyberpower inverter.After correcting the connection, It cannot switch from DC to AC( fault signal is displayed on its...


John,

It's shorted out, either replace the part or buy a new one.

If you need UPS, Surge, or Power Related help don't hesitate to contact me!
Daniel • daniel@psihq.com • Power & Systems Innovations • 800.260.2259 • www.psihq.com

Sep 24, 2013 | Cybernet Systems CyberPower DC to AC...

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My cobra 1500 watt inverted doesn't come on wen I


You may not have adequate input voltage. And unless you are hooking up to a forklift battery, the battery will not have adequate current delivery capability for any more than a few seconds at full power of the inverter.

1200 Watts is 100 Amps. 1500 Watts is in the neighborhood of 130 Amps.

Jan 17, 2012 | Cobra Electronics - Others

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Dir,sir my name is elsayed khatab working in power station my work depend on ups model ''400-cyberexwave'' but i have a problem when loading ups by select position bypass ,when i loading rectifier from...


I asked some clarification questions, but received no answer.

Because I see that your question is still standing, I will try to help you, but I am not sure, because I did not have your answers.

Your inverter I think is not CyberPower, but Thomas & Betts.
Your UPS has internal battery, which depends upon the type of the UPS.

If your battery is 270 V DC (which means 20 x 12 V batteries) 135 V will not be enough to charge them. But if you have 135 V DC (which means 10 x 12 V batteries) you can not give to them 270 V, because you can spoil them.

That's why you should measure the voltage on the batteries, not at the rectifier.
  1. If the batteries have the correct voltage for their number 135 for 10 batteries you can not adjust it to 270, you should adjust 135.
  2. If it is 270 for 20 batt's your rectifier did not get your order.
  3. If it is lower then the number of batteries multiplied by 11 V you may have a bad battery or completely discharged batteries and you need to charge them outside the UPS by other charger (One by one or in series) until their rated voltage is reached.
  4. Some of your internal breakers may not function well.

Jul 18, 2010 | CyberPower Dc/ac Inverter 400W

1 Answer

I just bought a power inverter for use with my pc.


There are two possibilites: the first is the over 400W power draw, the other is how you have the inverter connected. Do you have the inverter connected directly to the battery terminals (the clips) not the outlet plug (cigaretter lighter)? This is needed for any load over 80W and under 400W. (the inverter can handle a load demand over the 400W limit but only for short periods (800W).)

What is the load that your PC pulls (Is it a laptop or a desktop)? The laptop in my home has either a 65W or a 90W load (depending on the battery and the AC adapter we are using). Desktops take much more power (usually).

I hope this helps.

Cindy Wells

Jul 15, 2010 | Black & Decker Power Inverter PI400AB

1 Answer

400W Black & Decker Power Inverter Doesn't Power My LCD TV


The problem of your inverter is from
your battery .your laptop and dvd
player requires little current to
operate.But you tv requires more power
to run, if your battery is low you it will
not last for 3 minutes. If your battery
has a low current rating, it will also be a
cause, for example, if it is below
100ampere hour. Lastly if your battery
is bad i.e. if it reads below the
stipulated dc voltage Require by your
inverter to operate.

May 09, 2010 | Black & Decker Power Inverter PI400AB

1 Answer

Lost the wall charger of my Schumacher 400w power inverter (model PP-2200), where can I get another one?


Ah, I see, it seems what you have is a power pack. If so it would contain a gelcell battery, probably 12 volts. If this is true, then you may charge it with any 14-16 volt wall charger. You have to make sure you observe correct voltage and correct polarity when connecting up. Also you may have to obtain and change the plug on the charger wire.
I'm assuming the battery DC output is inverted to AC and you use it to power small AC appliances.

Mar 21, 2010 | Schumacher 400w Power Inverter

2 Answers

B&D 400W Inverter won`t run my laptop


even the smallest inverter can run a laptop, something is wrong with this unit

Jul 25, 2009 | Black & Decker 1000w Power Inverter

1 Answer

Fan has not turned on


I think the fan should work all the time. There might be and option in the software to turn on the fan only if the system overheats.

Jan 29, 2009 | NexxTech 400W Power Inverter (2218400) UPS...

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