I bought a 200w inverter but IT WILL NOT charge a thing! not even a pr

[trouville]

I just bought for £34.29 a "HOYOMA" 200w constant 400w maximum inverter 12v- 230v out.

I want to use it to charge electric razor, battery drill,PDA, Laptop,printer It wont do any of those things!!(im not taking the printer with me this time)

When i plug in the printer it starts up but wont print?

When i try to charge my old laptop it remains at 93%?

When i try the transformer for the drill which needs just 0.38 amps/220v it cuts out
when i try a small sony radio it dosent go at all on transformer?

Stereo system which draws 1.2 amps on full volume (loud!) and CD player in use and will run without battery just from my 18w solar panel! (i have to adjust the volume to keep the voltage down!) wont run at all from its 230v to 12v transformer (max 1.2 amps)???

When i plug in a neon lamp cuts out

When i plug in a 40w lamp it lights up but the inverter "screems" loudly


Whats wrong with it???Its the same system as the others sold for use aboard.today

I have had for 15 years or more a 200w inverter that weighs 6 LBS and has a large transformer, from that i can run all the above plus a normal electric drill or small sanding machine!! and have done once when i dident want to start the gereator Never a problem ever?? (i cant go down to get it as i havent the time and would cost me 200Euros for petrol--not practical)

So what is wrong with this "compact" modern inverter????? At the moment its just a useless lump!

Is there anything i can do to get it working??? Or must i look for another model??

HELP!!!!!What can i do???????????? Where can i buy another large model that works???

 

[MASH]

It sounds to me that you need to give it a float test. That should sort the problem out!

Failing that, it is obviously not delivering power. Check all cables, fuses and connections and if no joy send it back and ask for one that actually works. In working order it is more than capable of doing what you have asked of it.

 

[Norman_E]

I have had a somewhat similar experience with an electronic 240 volt to 110 volt converter. It would not power any electronic item, but would run an electric shaver, or a small bulb, or a 110 volt mini drill, on full speed only with the speed reduction control non functional. I suspect the problem lies in the way these things work. A genuine wire wound transformer pruduces current at reduced (or increased) voltage with the same sine wave form as the input. Electronic invertors or elecronic voltage reducers seem to work by producing an artificial alternating current, which probably has a square wave form as a result of being produced by rapid on-off switching. I also suspect cheaper units produce a half wave rectification. No electronic equipment will like such a supply. I did eventually find very small print in my 110volt converter instructions saying "not for use with electronic equipment".

If your unit will not run a mains shaver (I do not mean a charger for a shaver) then it is almost certainly faulty. I suggest you demand your money back. I believe proper transformer based inverters are still availabe, likely expensive though.

 

[boatmike]

Dont know if this is relevant but there are three types of inverter.
Pure sine wave..... Expensive but produce what it says on the tin. A full sine wave current.
Square wave ........Very cheap but produce a chopped form square wave that gives problems with some electric motors and electronic equipment.
Simulated sine wave....... Really an electronically modified form of square wave but much better than SW and rarely give problems. Middle price range.
Sounds as if yours is not only a Square wave type but there is something amiss with it. Send it back and make sure the next one you buy is simulated sine wave as a minimum.

 

[jenku]

Re: I bought a 200w inverter but IT WILL NOT charge a thing! not even

I really find the idea of a square wave a bit frightening. I hope I won't encounter one of those at sea...not sure my boat would like it....

 

[Guest]

Re: I bought a 200w inverter but IT WILL NOT charge a thing! not even

Definitely something wrong with it .... I use a Mobitronic Type 810-012PP when I can't use my DC to DC convertor ... its only 100W, called a Mini Inverse Rectifier, Switch Mode and it does everything I want from charging mobile, Video Camera, running Notebook, charging PDA etc. etc. ...... of course not all at same time !!

 

[trouville]

Re: I bought a 200w inverter but IT WILL NOT charge a thing! not even

was your Mobitronic about the same price? All the ones ive looked at so far cost about the same! And was what i paid for my old one.

Where did you buy yours, any chance of a link? PLS And a GPS mouse? what do they do???

 

[trouville]

Re: I bought a 200w inverter but IT WILL NOT charge a thing! not even

Ive spent quite some time online an in shops selling "inverters" All "look" the same and have about the same specification.

Is there one that someone is useing and really WORKS???

This is the second time ive bought a small inverter, some years i bought one in Italy used to run a printer--that dident do the job either,and i couldent take it back as the shop was going out of business!

Now i cant find another "transformer" inverter my last one i bought from an electrical shop in St Tropez and was from a CB-Radio catalouge they had, but Unfortunatly that shop and their Paris office have closed!

Ive looked online for something like it but theres nothing ! Any sugestions?

 

[boatmike]

Re: I bought a 200w inverter but IT WILL NOT charge a thing! not even

Most of those found near to Cap de Hague and around Portland Bill get very square with wind against tide and when you hit them behave very much like brick walls I find......

 

[Black_Pearl]

Hi

Our Cheapo inverter killed the electric toothbrush charger!

but our canon ixus camera charges fine & are able to run a small orbital sander for an hour or so

I don't think i'd want to plug anything to expensive in to it

 

[trouville]

Re: I bought a 200w inverter but IT WILL NOT charge a thing! not even

Judging from the replies, I certainly dont want sail anywhere like the golf of Lion where they often have square waves !!

unconfortable they are,and its then i wish my boat dident have so many rivits holding the planks in place!(plastics not so bad??)

As for the inverter its so new i cant throw it overboard? can i?

Gosh if i did that we d all have square waves!!!!

 

[sixpack]

It sounds to me as you have one of the cheap and nasty square wave invertors.
Best thing for them is a float test - throw it over the side and see if it floats.
I had two of them and managed to nacker two mobile phones, a television, a DVD player and an amplifier before I found the problem. Fitted a pure sinewave invertor (3.6kw peak 1.8Kw continous) and now don't knacker 240v electronic items.

 

[ytd]

Re: I bought a 200w inverter but IT WILL NOT charge a thing! not even

I have a cheapo one rated at 350W bought from an auto parts store. It runs a laptop and TV fine but trips as soon as I try and run a 350W drill or 300W sander. MIne "screams" when the battery voltage drops and will cut out at about 10.5V. It's not very loud but annoying. Mainly bougt it for charging laptop and mobile phones and it works fine for this.