Thread: 2000W Pure SW Inverter choices?

Originally Posted by johntins

I stupidly bought one of these:

12v Pure Sine Wave Power Inverter 3000w / 6000w AUS plug Car Boat Caravan

I don't have anything like the battery power to run it, but hopefully one day I will. It seems well built. If you weren't so far away I'd let you try it out.


Oops, read entire thread before posting, John Let us know how that one goes.

Thanks for the thought. How much power required to run it for how long?

I'm still hoping that maybe a 2K inverter would e okay to make a quick morning cuppa for SWAMBO, but never got my head around electrics, despite being a mathematics dux at school - not a good enuff bright spark I guess.
One of our WA aulroians has a 1500w version and says it charges his battery tools fine, so hopefully question 1 is answered, just trying to come up with a coffee solution in the desert.

Hi Gavin and start off by telling your better half that your just can’t run such a huge inverter.


Honestly, tell her any lie you think you can get away with.


Some many people these days think that all you need is a big enough inverter and the job is done.


These same people want to run microwaves, hair dryers, coffee machines, food blenders and so on.


Well you can and you only need one battery, not a bank of them.


If you don’t mind digging deep, you can use a single 100Ah lithium battery and they will easily run a 2000w inverter.


But you not only have the high cost of a lithium battery, but now you would need to spend up big on a decent battery charger, and get a large LITHIUM FRIENDLY DC/DC device.


So you would literally be looking at a few thousand dollars to this up.


OR


Just get a GOOD QUALITY 300w MODIFIED sine wave inverter and and forget all the above appliances.


A 330w inverter will easily run your Makita charger, your computer power supply, charge you phones and camera batteries and for a fraction of the price you are considering spending right now.

Originally Posted by drivesafe

Hi Gavin and start off by telling your better half that your just can’t run such a huge inverter.


Honestly, tell her any lie you think you can get away with.


Some many people these days think that all you need is a big enough inverter and the job is done.


These same people want to run microwaves, hair dryers, coffee machines, food blenders and so on.


Well you can and you only need one battery, not a bank of them.


If you don’t mind digging deep, you can use a single 100Ah lithium battery and they will easily run a 2000w inverter.


But you not only have the high cost of a lithium battery, but now you would need to spend up big on a decent battery charger, and get a large LITHIUM FRIENDLY DC/DC device.


So you would literally be looking at a few thousand dollars to this up.


OR


Just get a GOOD QUALITY 300w MODIFIED sine wave inverter and and forget all the above appliances.


A 330w inverter will easily run your Makita charger, your computer power supply, charge you phones and camera batteries and for a fraction of the price you are considering spending right now.

Many thanks Paul.
I actually have a reasonable 300W modified sine wave inverter, and the next question was to be can I safely charge my Makita 18V batteries with this - as opposed to using it connected directly to sensitive equipment like my laptop when switched on. You have just answered this, and she will just have to have plunger coffee when we are bush without the caravan, generator etc.

I've just read elsewhere that a coffee machine can draw between 2 and 7 times its rated? power, so assuming a 1000w version, that would be anything up to 7000w, albeit for a shortish time. When bush in this situation I would usually have my 2 starter batteries (about 900 and 600 CCA versions) and a 130 AGM connected via your USI 160 system. i could also add/connect my Truckstop starter/welder, but that would be overkill, and with other more essential camping gear too much weight for the D2 anyway.
So no extra brownie points for me for coffee machines.
Cheers Gavin

So no extra brownie points for me for coffee machines.

Make her a cup of coffee brewed in a billy and the brownie points will be doubled, Far better than the stale stuff in those little cups used in the coffee makers.

Makita make a 12v charger for their tool batteries don't they?