2000w pure sine wave inverter recommendations

[Raul]

Mine is in the pots and pans cupboard, and was upgraded from the 1600va to this. I had to occupy some of the space and cut the back of the shelf. Adapt and enjoy.

 

[Sandancers]

Well I might as well confuse you fully.

C20 rate is the discharge rate they use for capacity of a leisure battery.

The C20 rate for a 100 ah battery is 5 amps (100/20). So discharged at a steady 5 amps it will be 100 ah.

The C5 rate is the maximum recommend discharge rate for a lead acid battery.
C5 rate for a 100 ah battery is 20 amps (100/5).

The higher rate that you discharge a battery at the lower the capacity, a 100ah battery discharged at C5 will only give you about 90 ah.

So going from the above, if you have 200Ah of lead acid batteries and go by the recommended C5 discharge rate then the maximum current you can draw from them is 40A. Which at 12.5 volt for example makes 500W.

This is the amount I have and I intended fitting a 2000W inverter. But it would appear that based on the 500W figure then a 1000W inverter would be more than sufficient.

So the set up would be, 200Ah of lead acid battery feeding via a 80A fuse into 100A (approx 600mm long) cable with a heavy duty switch on the +ve side to the input of the inverter. The output of the inverter is a standard 13A mains socket with a label saying 500W max. I'm presuming that the batteries and inverter would be OK for short intervals of slightly higher wattage devices ?

Luckily you can get 500W hairdryers and straighteners and our wall mounted van heater is 500W. So main demands are covered.

 

[Lenny HB]

So going from the above, if you have 200Ah of lead acid batteries and go by the recommended C5 discharge rate then the maximum current you can draw from them is 40A. Which at 12.5 volt for example makes 500W.

This is the amount I have and I intended fitting a 2000W inverter. But it would appear that based on the 500W figure then a 1000W inverter would be more than sufficient.

So the set up would be, 200Ah of lead acid battery feeding via a 80A fuse into 100A (approx 600mm long) cable with a heavy duty switch on the +ve side to the input of the inverter. The output of the inverter is a standard 13A mains socket with a label saying 500W max. I'm presuming that the batteries and inverter would be OK for short intervals of slightly higher wattage devices ?

Luckily you can get 500W hairdryers and straighteners and our wall mounted van heater is 500W. So main demands are covered.

That about sums it up, bear in mind the higher current you discharge your batteries at the shorter their life.

 

[MisterB]

a heavy duty switch on the +ve side to the input of the inverter.

It doesn't need to be a heavy duty switch. You could just fit a relay which is switched on or off remotely.
I had that setup previously and surprisingly it's a lot easier to do than you may think.

Post in thread 'What have you fixed on your motorhome this week?' https://www.motorhomefun.co.uk/foru...n-your-motorhome-this-week.70246/post-5579889

 

[Odd-no-more]

This stuff is addictive, my set up is doing what I wanted, but I am stressing my battery, I'm going to see how it works out and if the battery suffers too much I'm thinking of fitting 2 120ah batteries I have found some space for the second battery but then there's the weight to consider, so is it worth spending big and getting lithium?

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[Lenny HB]

This stuff is addictive, my set up is doing what I wanted, but I am stressing my battery, I'm going to see how it works out and if the battery suffers too much I'm thinking of fitting 2 120ah batteries I have found some space for the second battery but then there's the weight to consider, so is it worth spending big and getting lithium?

A Fogstar 105ah Lithium is only £369, you could drop it in to start with them upgrade your charging after, your solar may have a lithium setting then fit a B2B.

 

[BOWHOUSE52]

Anything to keep the little lady happy And saved hanging here head out of the window when you are traveling along

That's exactly what I have done two 100 Lithium renege batteries 400 watt of solar power and B2B charger Which by the way I have not had to use yet

 

[Odd-no-more]

A Fogstar 105ah Lithium is only £369, you could drop it in to start with them upgrade your charging after, your solar may have a lithium setting then fit a B2B.

All in about £1,000 just so Mrs. Ex can have frothy coffee

 

[Sandancers]

All in about £1,000 just so Mrs. Ex can have frothy coffee

Could you not just take a small bottle of compressed air and use a small tube to inject it into the coffee, that would make it frothy enough and save you £1000.

 

[headlight]

All in about £1,000 just so Mrs. Ex can have frothy coffee

Dear cup of coffee.

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[headlight]

Could you not just take a small bottle of compressed air and use a small tube to inject it into the coffee, that would make it frothy enough and save you £1000.

Or go to the closest coffee shop

 

[Odd-no-more]

I used to have a hob top steamer, similar to a moka pot but with a steamer spout I haven't seen one since. When on EHU we have a coffee machine, that draws 1500w my inverter will run it but I would need much more battery and solar to run that.

 

[Lenny HB]

All in about £1,000 just so Mrs. Ex can have frothy coffee

Our frothy coffee maker was about 2 Euro and it's pump action

 

[MisterB]

so is it worth spending big and getting lithium?

only if youre changing because your batteries need replacing - i did it because i wanted to, not because i needed to, so for me it WAS an unnecessary spend but i had the money and the time, so i invested (not spent) that money and i am glad i did, but i could probably have achieved close to the same outcome if had been willing to compromise.

for me the main thing was to able to run a microwave and kettle at the same time OFF GRID and not have to worry about whether i was damaging batteries or overloading cables etc. I am sure i could have sorted it so that i could run one or the other but that wasnt what i wanted to have, again its what i wanted not needed to have.

i think my setup has cost me getting on for £1400 in total but i have added 304Ah Fogstar lithium, Renogy 3000w inverter, 2 x 100w Renogy panels (pre used), 250W Voltronic Mppt and a portable 150w solar panel (pre used) which i am looking at integrating into my setup as a simple plug in setup. I tried to pick up pre used items along the way to save money, it takes longer than just buyng off the shelf but i was in no rush and i did it all myself, with an unbelievable amount of help from members on here, who often pointed me in a different direction, but importantly made me challenge my thinking process.

Has it increased the value of my van by that much, NO !
Do i feel it was worth it, YES (but only because i had the spare cash)
Is it the best setup you could get, NO (have you seen some of the set up some Funsters have, WOW!)
Was it worth the investment ......... YES/NO
Would i do it again, YES!

as i said, you may be able to do what you want to do at very little extra cost. dont buy lithium for the sake of having lithium, decide what it is you want out of your whole set up and if you can achieve that (with a bit of compromise that you are prepared to accept) by spending very little - then do it !

 

[Awboxster]

Just checked and this is the draw with the inverter turned on and no load on the 3000w Renogy, if someone with a 1000w and 2000w could do the same then it would inform the decision other people are making in selecting an inverter that suits their intended use ...

and yes when turned off there is no draw from the inverter...

View attachment 766829

I have the 1000w Renogy inverter and it pulls about 0.33amps when on but no load.

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[Odd-no-more]

Our frothy coffee maker was about 2 Euro and it's pump action

View attachment 767217

Now you tell me

 

[Tombola]

Frothy coffee you say.
I added the lithium and all the gubbins again to my van and she chucked in the "dolce" machine..(I don't drink coffee)
And then I found the cupboard stacked with these things
Amazon product ASIN B000O1IAAC
Still..my air fryer and micro are well used

 

[TravellingSmurff]

This stuff is addictive, my set up is doing what I wanted, but I am stressing my battery, I'm going to see how it works out and if the battery suffers too much I'm thinking of fitting 2 120ah batteries I have found some space for the second battery but then there's the weight to consider, so is it worth spending big and getting lithium?

The lithium is generally quite a bit lighter in weight. I think the only negative of having them is the initial cost in my opinion

 

[TravellingSmurff]

only if youre changing because your batteries need replacing - i did it because i wanted to, not because i needed to, so for me it WAS an unnecessary spend but i had the money and the time, so i invested (not spent) that money and i am glad i did, but i could probably have achieved close to the same outcome if had been willing to compromise.

for me the main thing was to able to run a microwave and kettle at the same time OFF GRID and not have to worry about whether i was damaging batteries or overloading cables etc. I am sure i could have sorted it so that i could run one or the other but that wasnt what i wanted to have, again its what i wanted not needed to have.

i think my setup has cost me getting on for £1400 in total but i have added 304Ah Fogstar lithium, Renogy 3000w inverter, 2 x 100w Renogy panels (pre used), 250W Voltronic Mppt and a portable 150w solar panel (pre used) which i am looking at integrating into my setup as a simple plug in setup. I tried to pick up pre used items along the way to save money, it takes longer than just buyng off the shelf but i was in no rush and i did it all myself, with an unbelievable amount of help from members on here, who often pointed me in a different direction, but importantly made me challenge my thinking process.

Has it increased the value of my van by that much, NO !
Do i feel it was worth it, YES (but only because i had the spare cash)
Is it the best setup you could get, NO (have you seen some of the set up some Funsters have, WOW!)
Was it worth the investment ......... YES/NO
Would i do it again, YES!

as i said, you may be able to do what you want to do at very little extra cost. dont buy lithium for the sake of having lithium, decide what it is you want out of your whole set up and if you can achieve that (with a bit of compromise that you are prepared to accept) by spending very little - then do it !

> Has it increased the value of my van by that much, NO !

Personally I disagree. It was one of the "must have" things for us because we do more off grid than on. And your setup sounds awesome to me and therefore if the van was £1400 extra, it wouldn't have been a problem.

 

[Tombola]

Personally I disagree. It was one of the "must have" things for us because we do more off grid than on. And your setup sounds awesome to me and therefore if the van was £1400 extra, it wouldn't have been a problem.

The guy who bought my autotrail said the same as I insisted mhdepot added in the listing "be fully hooked up when off grid" etc etc.
He said he chose mine as it had virtually all the power he wanted without plugging in.

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[BOWHOUSE52]

Personally I disagree. It was one of the "must have" things for us because we do more off grid than on. And your setup sounds awesome to me and therefore if the van was £1400 extra, it wouldn't have been a problem.

That's exactly the way I looked at did not really need to buy if We decided to have other items in the van then there was no pondering will we have enough power as we do of grid a lot ie CL's with no power and for mostly when we are abroad ie Aire's &free stops

 

[Lenny HB]

If the new van ever arrives I've budgeted £3.5k to mod the electrics. If I don't do it straight away it probably won't get done. Like most things with a Motorhome easy to do when new once it gets a couple of years old you get reluctant to spend money on it.

 

[Raul]

I have the 1000w Renogy inverter and it pulls about 0.33amps when on but no load.

Are you sure? Haven’t you forgot the solar or other charger? The victron in same class eats about 9w, that’s about 0.75A at 12v. And that’s the old model pre ve direct port.
The only make that I know of, with lower than victron is studer, much more money.

 

[Lenny HB]

I have the 1000w Renogy inverter and it pulls about 0.33amps when on but no load.

Are you sure? Haven’t you forgot the solar or other charger? The victron in same class eats about 9w, that’s about 0.75A at 12v. And that’s the old model pre ve direct port.
The only make that I know of, with lower than victron is studer, much more money.

Renogy Spec

 

[Raul]

If the new van ever arrives I've budgeted £3.5k to mod the electrics. If I don't do it straight away it probably won't get done. Like most things with a Motorhome easy to do when new once it gets a couple of years old you get reluctant to spend money on it.

With that budget, at the today’s availability, you will have a strong nice system many will envy. If I start from scorch a system now, multiplus 2 will be first choice with home made battery, fogstar cells, and max possible solar. I would pic the most efficient solar panel available on the market, and still be within budget. Many thinks now, was not available back in 2019 when I did mine, for allot more. A 200ah battery back then, cheapest was £1180. Today I could have 560ah for that money.

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[Lenny HB]

Which that budget, at the today’s availability, you will have a strong nice system many will envy. I I start from scorch a system now, multiplus 2 will be first choice with home made battery, fogstar cells, and max possible solar. I would pic the most efficient solar panel available on the market, and still be within budget. Many thinks now, was not available back in 2019 when I did mine, for allot more. A 200ah battery back then, cheapest was £1180. Today I could have 560ah for that money.

I'm looking at 460ah I was going to build my own but now I think I will buy Fogstars not a lot dearer and they have built in heat pads, coupled with a Multiplus 3000.
Roof space might be a problem can't fit Victron, sizes don't work for the van.

 

[Raul]

Victron panels are not the most efficient anyways, and the 460ah it’s good for 150a long term discharge. If that’s ok, then go for it.

 

[Awboxster]

Renogy Spec
View attachment 767347

Absolutely positive!..checked with digital DC clamp meter and shunt....and NO input from solar or other charger.

 

[BOWHOUSE52]

Ex gasman aren't you glad you started this blog Is your brain not dissolved by now like I said earlier on a mine field but very interesting I hope you are a lot wiser

 

[Odd-no-more]

Ex gasman aren't you glad you started this blog Is your brain not dissolved by now like I said earlier on a mine field but very interesting I hope you are a lot wiser

I have learned a lot, mainly that I know far less than I thought I did.

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