Latest offering from Power Jack (ugh!)

"Ideally suitable for Journeys, Camping, Tents, Boat Trip, Working on the way and everywhere, where is no electricity!
Simply connect our with 24V battery.
For example as in a Car, Motorcycle, Camper or Boat and use 110V electrical appliances."

It is pretty heavy.

What does SMH stand for? Why do folks killing time on the internet feel the need to use so many abbreviations that so many have no idea what it stands for anyway?

So I'm on a motorcycle trip and need 60,000 watts from an ~150 pound device? Sure thing. Looks like a unicorn to me.

One problem with Asian sellers is communication if there is a problem. The ad is written quite poorly....not a good sign.

I think they got carried away with their wattage claims.

Specifies 110 volts while employing universal sockets...I am a bit confused. Those sockets will scare a lot of Americans.

"I totally agree with the abbreviation thing. It bugs me to no end." that's what having kids is for, along with texting. i draw the line at facebook..never had it, never will...

littleharbor2 said:

I totally agree with the abbreviation thing. It bugs me to no end. SMH stands for shaking my head, as in disbelief, as in 60,000 watts into a 24 volt bank is roughly 2,500 amps. Is there even cable large enough to handle 2,500 amps?

There are plenty of tools for working with cable that has well over four times the mass of 4/0. A size 120 die set will crimp 4/0. I have a size 400 die set. My Ideal 35-053 cable cutters will cut 750 MCM cable....which makes 4/0 look pretty small.

Its efficiency (or lack thereof) is a claimed 90%.   That means it could be producing 1500W of heat.   Forget about using it as an inverter, or whatever it's supposed to be  -  use it for the one thing it probably does quite well, a room heater.   For the price it's not a bad deal for a 1500W heater, and there's enough space inside it to also dry clothes and maybe warm food or germinate seedlings.   And if (when?) the magic smoke ever gets let out, the cabinet would make a good dog kennel or chicken coop.   See, it's very versatile.

John

Would be interesting to see a review/testing.  If it actually ever ships.

UPS showed up this morning with a 12 volt 3000 watt pure sine wave from Power Jack. I reported it lost/stolen exactly two weeks ago. It was delivered to a different address as it turned out. It *looks* just fine. My plan is to do cabin solar installs where the cabin is used a few weeks/year and the customer is on a budget. We...shall...see.

I've had many businesses. Some made money for years and years. Others did little more than provide an exciting learning experiment. Most people start off kind of cheap. Otherwise....not many would take a chance on them.

One way to look at it; If a $500 inverter lasts 1/2 as long as a $1200 inverter....is it a terrible deal? The board is mostly solar pros. The stones will be thrown...no doubt.

Sometimes I buy the best.....sometimes the cheapest. Sometimes both for comparison etc.

animatt said:

Half price for half life is not so bad. Quarter pricee for tenth of life is a bit different. But still maybe acceptable to some.

Without reviews to consider, it is an unknown to most. It sure is heavy. A lot of companies start off cheap....then rise prices if able.

The transformer is gigantic...as is the inverter. It weighs over 150 pounds as memory serves. Having two sets of connectors is interesting. This is what they say....one set is for the inverter. The other set is for charging the battery....there is a battery charging mode. I would always use 4/0 when dealing with wattage over 3000.

I suspect the designing engineer meant a 5,000 watt load with a 15,000 watt surge capacity. Then the marketing folks turned that into a "15,000" watt inverter with a surge that I'm not going to grace. Clearly the marketing folks decided to employ bikini babes for their advertisements. Though that does help convey the size of the units.

I have the 3000 watt unit by the way. It looks just fine and has good heft. For periodic, seasonal use I think the unit may suffice.

What equipment is needed to test the quality of an inverters sine wave? That would be interesting equipment to have access to. They can all make various claims. What seems to matter is longevity, efficiency, and the quality of sine wave. 

Trump & Co are gearing up for a battle with China I think. He may win. He may not. Could be a decent time to have a spare until things settle down.

I said "suspect....".  Did that convey "chart"?

Does anyone believe the 60,000 watt surge claim? An engineer *might* be able to make a tiny EMP if they had access to that kind of energy... Though I have no idea what a tiny EMP would be good for....or even if it is possible.

A 15,000 watt surge would be pretty incredible. One could *conceivably* power a good sized well pump.

I think my XW-6048 can manage a 15Kw surge for a couple seconds.   A 60Kw surge rating is most likely fraudulent.

Everyone agrees that the 60,000 watt claim is likely ludicrous. It is a 24 volt inverter by the way.

A 750 mcm cable could possibly handle the voltage for several seconds? As memory serves....that cable has almost four times the mass of a 4/0 cable.

What kind of cable are used on electric chairs? They have to be huge.

softdown said:

FWIW....it is not difficult to get 1000 mcm copper cable. Diameter 1.32"....for when you need serious power?

Just a comment on the Ampacity of cables;
The NEC Ampacity at 75 C for 1000 MCM cable is about 545 A.  As cable diameters become larger,  the increase in Ampacity becomes ever smaller with increases in the cross-sectional area of the cable,  as seen in this older NEC Table:
http://www.usawire-cable.com/pdfs/NEC AMPACITIES.pdf

Realizing that surges are,  by definition,  short-duration events ...

The ratings of this inverter seem far-fetched,  especially at 48 V.

One way to increase Ampacity with larger cables is to use multiple conductors,  which IS permitted in the NEC for larger diameter cables.

FWIW,   Vic