Cobra 2500 Watt Inverter CPI2575 Unboxing and Review - Review part 1/2
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- Опубликовано: 10 сен 2024
- In this series I repair and then review the Cobra CPI2575 2500W/5000W 12V to 120V power inverter. This is a common and popular inverter. Is it a good inverter or just an inverter with a good profit margin? In this series I find out if this inverter is a keeper or one to pass on.
I cannot guarantee against unauthorized modifications of this information or improper use of this information. I assume no liability for property damage or injury incurred as a result of any of the information contained in this video. Be sure to read and follow all safety instructions for any equipment seen or implied in this video, and use safe practices when working with potentially dangerous equipment. No information contained in this video shall create any express or implied warranty or guarantee. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user.
Well this test explains my prior failures with same inverter. Fortunately, my Cobra now sits on back bench, reserved only for light camping duties. Great job dissecting this inverter.
Sad but expected, Cobra like so many once trusted Brands are now complete junk. Based on your channel I recently purchased a 1000 watt Xantrex Xpower and I am so pleased with what I received for my hard earned buck. It's rated surge at 2000 I calculated was much closer to 2200. Thanks for your channel my friend I have enjoyed it very much!
Oh, my cabling is #2/0 AWG, yes 2/0.. I plan on purchasing a larger inverter one day so......
Affordanet
You probably spent about as much on the cabling as the inverter ! :)
*****
No Comparison at all actually :) I found a refurb on EBay for the inverter, so only 35 bucks free shipping. Arrived as new, I was stoked :). Still gotta find a deal on a Pure Sign, thinking Samlex/Go or whatever looks promising. Really only need about 500 watts there. Take care!
The instructions say use double cables for the 2500 watt range.
That right because how he has it set up it’s only pulling half of what it can do with one set of cables.
Not exactly. If you saw the previous videos you'd see the heavy connection inside, off of the lugs that tie the 2 connectors together. Because his cables are so short, and he's using larger cables than what it says to use, it's just fine doing what he's doing. The reason it doesn't do what it's supposed to is because it's junk. The guy is an engineer. I'm sure he knows what he's doing.
The internals of this device are and never were designed to run 2500 watts. 4 mosfets are not enough for that kind of power. My 3kw has 12 fets, for example.
It also only has 2 transformers, where, at 2500w it should have at least 3. A good one would have at least 4.
Anyone who's purchased more than a couple inverters over the years would take one look at the insides of this thing and laugh when it says 2500 watts. Even just at first glance. It's too freakin small!
In the days, Cobra were one of the top notch brand in 1980's. As Cobra has out resource to China, 'then what?' Even new Cobra CB radio really has gone down hill, as the price has dropped too.
Love the videos like normal....you just cut them into pieces and make us wait for the next one. =)
yeah, on informal videos like this one I usually just make one long video and then cut it up into reasonably sized chunks at locations that, hopefully, make some sense to the viewers. As always thanks for watching and for being one of my first subs. ;)
I have never really liked that cobra 2500w inverter thanks for conferming this, I ran a similar test on my Eliminator 3000w and got 2800w out of it and my cabling was not enough for 300Amps
I have put 3000 watt load with no beeping. I also have two #4 wires feeding power. My thought is 12 volt batteries have a tuff time feeding that amount of power, and it needs more batteries I mean a lot of batteries rather than 1 or 2 big batteries. And then the extra 2 wires really help. I do like your testing setup though.
You save me from getting scam thanks lots great video
I would argue with you on the direction of air flow from the fans, but it would be rude to do so on your own channel. ;-)
Thanks for another great review.
Is it normal for these invertors to flash OLP at initial start up ??
Yeah, that's what I thought; 1500W. I can't remember the internals but I think it might be possible to reverse the two fans in the rear by flipping them over so they blow inward.
How we used it whit solo plat
The cobra 2500/5000 watt inverter shows code opp don't know what it is I can't find the instructions
What inverter do you recommend to power a few power tools.. grinder, drills, light bulbs, pretty much garage items?
Hello I buy a 2500 cobra inverter I conectes on a big rig but the problem is that has a green light that shows the battery bolts and if I conect a microwave light start blinking in red light goin down and microwave it’s only 700
This sounds like inadequate batteries or cabling. Your microwave will likely draw about 100A from the batteries so something like 0AWG cable or heavier would be best. This inverter will also require at least 200Ah of batteries to perform up to its rating.
I think I went def at 7:37 hahaha. Good review tho thanks!
Do I need to put some kinda fuse on this? Also have solar panels coming into the batteries. Thanks
While electrical best-practices and codes will say otherwise I contend that no fuse is necessary on inverter inputs on this type of unit and I never use them. The inverter is internally fused and if that fails for some reason any additional failure internal to the inverter will open traces on the circuit board and outright turn the conducting path it into smoke and then open. My main thing regardless of fusing or not is to make sure the inverter is not in contact with any combustible materials. If it fails a plastic cased inverter like this could ignite in a worst case scenario. With the fire retardants they put in plastics it won't burn vigorously but it can still cause a fire.
can someone please help me under stand why the alarm is going off and cant turn it off
I have an inverter exactly the same, it’s all hooked up and it shows input voltage, but no out put. I hooked up a 700watt microwave and it looks like it’s too much for the inverter.. any recommendations!?
What battery and cable setup are you using? A 700W microwave will draw about 1000W and require around 100A from the battery so a typical car battery will be marginal. Also cabling should be 4AWG or better and fairly short. Not sure your setup, just a few ideas.
I am wondering if there was ANY difference when you hooked up ANOTHER SET OF CABLES to the other cable posts on the inverter.....thus more power connection.
I do notice that you have it hardwired to the batteries, so that should give maximum connection. And I am sure you are correct about the inverter....I am wondering if it got MIS-LABELED at the factory, and just did not get caught.
its advertised as that
+DMAN22yeah Yup....I have been over at Amazon reading the reviews....seems this needs BIG amount of power and ALL four cables connected to get the juice. Many people have had no problems, others not so lucky...but it might just depend on their system. Lot of trucker reviews.
Xboomer1 most people buy the thing with the biggest number for the cheapest price, and that is why this inverter sells so well
Man you really know your stuff. Great video thank you. I have this inverter in a company truck. I was using it to run a small tv and antenna. I used it that night and the next night it quit working. What could be the problem? It's bolted to the floor and doesn't move. Any suggestions would be appreciated.
Very nice demo. Educational.
Unboxing??
have you had a chance to test Cobra's new line of inverters? particularly the 2590 to see if was any improvement from the 2575??
Thanks for this job ...
Is this inverters comes with built-in fuse ?
Thank you
What gauge of wire do you recommend?
Hi, i have the same inverter, the fan will turn on only when it need to low the temperature or its supposed to be always on?
Mine dose the same too when I trun my inverter power on all the fan spin then it stop I was thinking dose all the cobra inverter dose that or the fan is no good
Why do these bigass inverters never have 380V outlets for three phase appliances?
you don't think it could output closer to 2.5kw with 12v minimum on sag? 11.4 seems ridiculous to test @ duuuude
Well done !!!
thank you
Hi! My name is Hector, I have a cobra 2500 watts with two positive and two negatives, should I run all four cables?
Both positive and both negative terminals are connected internally so you do not have to use all 4 for lighter loads, but all 4 are should be used to avoid cable and connection heating if you want to run at high loads for extended periods of time.
knurlgnar24 right, I’m only gonna run a small fridge that only requires 60 watts and a coffee maker and a crock pot on and off.
knurlgnar24 I have another question regarding my inverter, I connect it and works fine, is giving me 14.0, 13.9, when I connect the microwave is giving me some number, is giving me the voltage and then other number like 950 , goes up a little then comedown, what are those numbers?
What brand do you recommend?
Any idea how to remove the low voltage shutdown protection on a Cobra 2575 inverter?
you cant
Need bigger cables and inverters usually shut down at 11.5 v
Hi cant you tray 1 more time with cables on bouth input connections from the batt. Over 100Amp will give you high voltage dropp on dc. ? Maby it can handle 2000watt?
his test is adequate
Do you know if i can connect the cobra inverter to 24v-48v system?
no
You would need a 24v or 48 v inverter...this is 12v...they have to match.
I have the same inverter. Is it worth to repair and who would repair such a thing
No commercial entity will repair such a product for a cost that makes sense to repair it. That said if you yourself or someone you know is interested in giving it a go it is highly likely that you can repair it for only a few 10's of dollars - maybe less. Yes, I'd say definitely worth it as a hobby activity if you're into that sort of thing. It's the time and risk of non-repairability that makes repair a commercial no-go. If you just want to get rid of it and not throw it away sell it on eBay as broken. You'll probably get a good $40 or so out of it.
I bought 2 Cobra 2500. Do you recommend buying a third one to compensate for the low output? Or is better to buy other brand?
If those inverters do what you need then that's great, but if you are considering purchasing another inverter I would recommend a different product. E.g. The older Cobra inverters that come in metal cases are much better than the newer ones in plastic like shown here.
***** Hi! I installed a Missouri Wind Turbine with a converter from DC to AC connected to a charge controller and a dump load (the latter still not connected). The charge controller is connected to a six-battery bank and from it to two power inverters (Cobra 2500) and the inverters the main breaker. The inverter output is only 95V each. I saw in your video that the output of the inverte was 110V What am I doing wrong?
kevin Ruperto Sorry, I meant from AC to DC.
kevin Ruperto
most likely you are using a non true RMS multimeter which does not accurately read the voltage. These inexpensive inverters are not phase corrected and can read grossly incorrectly with non-RMS meters. A true RMS multimeter should read the proper voltage.
@@knurlgnar24 that's because the inverter is not a true sine wave inverter so the other half of the voltage is on the neutral wire especially with the 2500 watts ones from Cobra.
Simple question, is this a Pure Sine???
Michael Mullins no it's a modified sine
Si good for a freezer
Good for you, man.. It's about time someone put their foot down regarding exaggerated specs. We all know it's a lie, so no one's being fooled anymore, but unfortunately, there's no telling how imaginative the specs actually are. Makes comparisons completely meaningless. There's no good reason to tolerate that.
Mines just died wont turn on laster 3 years.
I was going to buy this one also but like usual you talked me out of it. can you pm me so I can send some questions your way ?
does anyone else know alot about inverters and brands? I'm looking to get one but there are so many models I can't choose. can anyone assist me?
+ken ber If you want a good, inexpensive 1500 watt Pure Sine Wave inverter, go to Amazon or Ebay, and look at the OSP Tiger Claw....mine has been running for 1 1/2 years, no problems...look at RUclips Videos and Knurlgnar's review, and comparisons... price...$199 US dollars...you might need a .01 micro farad Capacitor to put on the negative terminal to the ground screw, that is to help the fans run properly. Other than that, I had no issues.
I run my 850 watt power consumption Microwave Oven on it. I don't think it can be beat for the price. Also...STAY AWAY FROM ACCURATE TOOLS INVERTERS....see the review on those...badly built.
Hope that helps.
It also depends on what you want to RUN...I did 1 full year of RESEARCH on the internet before even BUYING an inverter....I learned about Batteries, Cables, FUSES...Solar Panels, and of course inverters.... Best suggestion, go get an education...it is not all that complicated, though time consuming...:-) Then build a small system like I did....
I've been doing tons of research for months. My inverter is the last component I need to buy. Ive been running everything off of a Cobra cpi850 but need something bigger/better quality that is a pure sine wave. I've been in eBay for ever. So many dam inverters to pick one. I think I'll just have to close my eyes and pick one.
Thank you for the reply.
I see, you have been busy.
For making your decision, try Amazon...they have reviews from buyers. Look for the size you want, and pure sine wave. I was looking at Nimble brand, but it is confusing with so many voltages. And I did not like some of the reviews... So use Amazon for some reviews in the size you are after.
+X Boomer does this ave the open ground and do you have this model?
11.4v is to low the batteries are not powerfull enought
The Cobra inverter is junk. I have the 2500 Pro in my truck and it barely can run my 700 watt microwave. Anything higher will trip the breaker within 2 minutes. Definitely not anywhere close to 2500 watt. I would say more like 750.
Cobra dc-ac inverter sucks they suck they break easy they do not have a manual turn on switch they have a electronic turn on switch which is this more stuff that's breaks,
I have the 1500 It is A piece of crap the best part about it is the Remote switch...
U need bigger cables
Why do you insist doing vids on cobra shit , do some on a good brand