1000w inverter problem - help !

[Two Owl Ones]

The label is showing 1660wh.
It's also showing a voltage of 14.4v which is the charge voltage not the at rest/standing voltage.
My opinion....you have a faulty inverter.

really i hadnt thought of that, as the inverter is new out of the box,i will return it and buy the 2000w i think and use 2 new batteries, thanks for the reply

 

[bigtwin]

i just removed the 300w one and replaced it with the 1000w renogy inverter,

That might be part of your problem.

Your 300W inverter would be pulling about 30A and your 1000W inverter, potentially, 100A. Have you checked the cable size between your battery and the inverter? It’s entirely possible that the cable is too small. Could you estimate the length of the cable between the battery and the inverter; if it’s quite long you may be suffering a voltage drop along the cable.

Ian

 

[Two Owl Ones]

That might be part of your problem.

Your 300W inverter would be pulling about 30A and your 1000W inverter, potentially, 100A. Have you checked the cable size between your battery and the inverter? It’s entirely possible that the cable is too small. Could you estimate the length of the cable between the battery and the inverter; if it’s quite long you may be suffering a voltage drop along the cable.

Ian

the cables are heavy duty,they came with the inverter,maybe about 8-10" in length so its reasonably close to the battery, im thinking i may upgrade for two new batteries, do you think i shoud keep the 1000w inverter and buy 2 new batteries ? thank you for the reply,

 

[bigtwin]

the cables are heavy duty,they came with the inverter,maybe about 8-10" in length so its reasonably close to the battery,

Ah (), you changed the cables then.

im thinking i may upgrade for two new batteries,

If you‘re going to run an inverter, I would.

do you think i shoud keep the 1000w inverter and buy 2 new batteries ?

Depends entirely on what you want/need to run from it. However, I wouldn’t be using it to provide any form of van heating (a sure fire way to kill your new batteries).

Ian

 

[Two Owl Ones]

Ah (), you changed the cables then.



If you‘re going to run an inverter, I would.



Depends entirely on what you want/need to run from it. However, I wouldn’t be using it to provide any form of van heating (a sure fire way to kill your new batteries).

Ian,

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[Two Owl Ones]

thank you for the reply, i will now ditch the idea of electric heating unless on ehu,
kind regards

 

[Two Owl Ones]

thanks mike, yes it would be better/easier to use gas, we did want a back up if it was needed in case we run out of bottled gas or was having difficulty finding a supplier wherever we are at that time, i know other motorhomers can survive without using gas,i just cant quite grasp it as yet,

thank you for the the help i have received from all who have replied to the post,good news i have sorted the problem out, now i can run the 700w swiss lux kettle, the heater, and the 700w swiss lux toaster one at a time.
the lithium battery is at 13.7v if i switch the kettle on it drops to 13.2v then back to 13.7v once it has boiled.

the 300w inverter that i have removed, i used to connect it to the hook up socket via a socket and cable underneath the van that was connected to the inverter that would live all the sockets in the van, but i only ever run the dab radio, tv, and blu ray player, and charged lap top and phones.... so i now connect the 1000w inverter to a dedicated double socket with built in usb charging points now everything works great ! oh and the kettle boils in under 5 mins,

 

[bigtwin]

the 300w inverter that i have removed, i used to connect it to the hook up socket via a socket and cable underneath the van that was connected to the inverter that would live all the sockets in the van,

Are you saying that you used to connect the output of the inverter to the EHU input?

If this is what you were doing you were using the battery to produce ac through the inverter that you were then feeding into the EHU to power your onboard mains loads which includes the battery charger. In other words, you were using your battery to power the battery charger that was trying to charge the battery. A sure fire way to flatten your battery.

Have I got that wrong?

Ian

 

[Reallyretired]

The battery label is highly suspicious. Even if they calaculate the 100Ah at 14.4V (for some obscure reason) it will then be 1440W not 1680W.
I suspect you have a very odd battery and may ned to replace it with something better, though moving from Lithium (The best if its a good un) to AGM (Probably the worst choice) seems a retrograde step.

 

[Two Owl Ones]

yes thats what i was doing, the leisure battery has never gone flat either, i hope it doesnt flatten it now its done correctly

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