Maybe a dumb thought but why not put the three grand toward a engine driven machine. Mike

 

Size is an issue my friend. Running a inverter generator is fine as well. Though the thought of cordless powerd welder is pretty cool. And could be handy

 

I find the 4 hour welding time really hard to believe.


The only specs they list on their website is HYBRID duty cycle- which is when the machine is plugged into 120v AC power.

 

I bet you don't get more than 20minutes at full power with they welder. ..

Sent from my SCH-I545 using Tapatalk

 

http://weldingweb.com/showthread.php?568401-12-volt-power-inverter-for-powering-welder&highlight=

Don't waste your money on that dewalt. When the battery goes dead since its a dewalt you know a new battery alone will cost almost almost as much as the new machine did.

My welder power inverter could be reproduced with AGM lead acid batteries for around $1,000. If you used two group 31M batteries you could power a 2,000w inverter to power a welder for 10 to 20 minutes.

 

That Dewalt welder is actually made by Fronius and they have it under the model name the AccuPocket 150 if you were getting one i'd get the Fronius brand not only so people wont hate because its a Dewalt but because of the warranty issues it may have.

 

One battery charge is enough for up to 17 minutes of continuous operation at full power (150 A) and the device is fully operational again after approx. 30 minutes of rapid charging.

 

$3000 is a waste of money.
I built my 13.2v 60ah LiFePO4 diesel truck starting power pack for around $1,000 and added a $364, 2,000 watt samlex pure sine inverter.
Mine does the same thing, it can power my 2,000 watt inverter for about 15 minutes and can be fast charged in well under an hour.
If you took $3000, you could build a better one and have money left over.

 

$1,000.00 battery
$364.00 inverter
Sub Total: $1,364.00

Add $$ for Inverter Tig/Stick welder

700-1300 depending on brand.

call it $1,000.00

Yer up to $2,364.00

 

I always find it funny when people say something is a waste of money because they can "build" it cheaper. You can build yourself a car cheaper than buying a new one too. You can build your own house cheaper than buying one. You can raise your own cow for cheaper steaks than buying from the grocery store. So I guess all that is a waste of money buying too.... Not everyone has the same means or know-how.

 

Its batteries and a power inverter.
It is so simple I don't know how some one could screw that up.

 

Remember 2 batteries and a pair of jumper cables can get you somewhere!

https://www.youtube.com/watch?v=PV5oLPLUzrM

 

Im wondering if one could use the power supply and use it on a inverter welder like maxstar?

I was assuming our twister master had the maxstar.

And I really don't recommend building your own 60ah LiFePO4 battery like I did, just use 2 group 31M deep cycle AGM batteries. Two of those group 31M marine batteries are around $300 each and would be rated for a total of 200ah so you would have 100ah of useable capacity. But recharge time would be a lot slower, up to 3 to 4 hours for a full charge.

 

and 2 of those batteries will add up to 150lbs to hump up the job site. Not zackly portable.

 

Yeah that is true. I use one to power a pure sine inverter and I think it weighs 70 to 75 pounds.
My lithium pack and 2000 watt samlex pure sine inverter weighs around 50 pounds total. I have only ever attempted to use it with my mig. I think with my transformer based tig it would only run 60 or 70 amps max.

How portable does it need to be?

 

Pretty heavy, this unit is only 25lbs

 

Only 25lb?
Something seems a little fishy about that.
Let's say the welding power source is like an inverter, it's going to have to weigh 10 to 15 pounds it's self then the battery, let's say it is 15 pounds of lithium batteries. That is only going to hold about 0.9 kwh, with about 0.6 or 0.7 useable. The only way you could tig weld for even close to an hour is if you were using running less than 50 amps. Probably well under 50 amps.

 

Only 25lb?
Something seems a little fishy about that.
Let's say the power source is like an inverter, it's going to have to weigh 10 to 15 pounds it's self then the power supply, let's say it is 15 pounds of lithium batteries. That is only going to hold about 0.9 kwh, with about 0.6 or 0.7 useable. The only way you could tig weld for even close to an hour is if you were using running less than 50 amps. Probably well under 50 amps.

A fully charged battery is enough to weld up to six 3.25 mm (0.13”). electrodes or up to eighteen 2.5 mm (0.1”)ones. Not much at all. ( for TIG
One battery charge is enough for up to 17 minutes of continuous operation at full power (150 A) and the device is fully operational again after approx. 30 minutes of rapid charging. ) For the record the info is straight off the makers website.

 

Alright 17 minutes at 150amps seems possible. The first post said something about welding 150 amps for 4 hours.

 

That 4 hours was from the sales dude :cool2::laugh: