Search for Mobile Cutoff Tool.

[Deere Dude]

My BIL has 7 or 8 different Dewalt battery operated tools and is sold on them. When working with him on a carpet job he stopped and got a Dewalt 4-1/2" grinder for the small strip nails. I figured I would give it a good test in case I wanted a battery operated tool. I was totally unimpressed with the grinder or the battery life. My mistake at first was I tried grinding the nails but half way through I went to a cutting disc which did work better. For a couple rooms of small nails around the edge and then some wood trimming on the bottom of door jams I think we went through every battery he had and was charging them again.

I would not advise them unless it is for cutting off a piece of PVC or something light especial if for a job in the middle of nowhere.

I am familiar with battery powered tolls to a small degree because as a pipefitter I had to take some Milwaukee batt. tools into the sticks for PVC cutting and was always disappointed, although they are much better now.

 

[Sodo]

OK it was 57 seconds to cut a 3/4" logging cable. Can't tell you how many times but probably 10-20 cables per battery.

I figger if this is something Bruce doesn't know then TBN has a dire need to know! :laughing: Better jump on this it'll be another five years before I can find something to teach Bruce. So I started a new thread with that specific searchable subject.

 

[ultrarunner]

Before I had the inverter... I would run a small air die grinder with a thin kerf wheel... it would be good enough to cut through hardened lock shackles where I couldn't get a bite with a bolt cutter.

A lot of my friends used high pressure air tanks with a regulators for remote construction projects... suppose to be a no-no... yet it worked sweet.

I just used a large portable air tank of 10 gallon size with a 175 psi to start...

My part of CA is so dry... I won't attempt anything until after the first rains...

 

[DFB]

You know one thing I seem to see and that no one ever seems to touch base on is using a cheapie inverter (probably less than $50) to power most cordless tool battery chargers while a machine is running out on remote sight. Some quick chargers need only about 30 minutes to recharge and might be more compact and useful tractor accessory than more expensive options like buying xtra batteries or a small electric generator. :confused3:

 

[k0ua]

You know one thing I seem to see and that no one ever seems to touch base on is using a cheapie inverter (probably less than $50) to power most cordless tool battery chargers while a machine is running out on remote sight. Some quick chargers need only about 30 minutes to recharge and might be more compact and useful tractor accessory than more expensive options like buying xtra batteries or a small electric generator. :confused3:

Something like this?

Amazon.com : 150W 12V DC to 110V AC Car Charger/Car Inverter with 2.1A USB Port, AC Outlet & DC Power Inverter - Works with Apple, Samsung, Sony, ASUS & more Laptops, Smartphones, Tablets, MP3 Players, Portable DVD Players, Handheld Gaming Consoles &

Amazon.com : CyberPower CPS100BU 100 Watt Swivel Head Mobile Power Inverter with USB Charging Port and AC Outlet (Black) : Vehicle Power Inverters : Car Electronics

 

[bcp]

OK it was 57 seconds to cut a 3/4" logging cable. Can't tell you how many times but probably 10-20 cables per battery.

I figger if this is something Bruce doesn't know then TBN has a dire need to know! :laughing: Better jump on this it'll be another five years before I can find something to teach Bruce. So I started a new thread with that specific searchable subject.

The photo of all the sparks in the smoking grass didn't come through. And what happen when you need 37 cuts? :laughing:

Bruce

 

[crackerjack222]

You know one thing I seem to see and that no one ever seems to touch base on is using a cheapie inverter (probably less than $50) to power most cordless tool battery chargers while a machine is running out on remote sight. Some quick chargers need only about 30 minutes to recharge and might be more compact and useful tractor accessory than more expensive options like buying xtra batteries or a small electric generator. :confused3:

I dont know why but my Ryobi battery charger would not work on my 12-120v 800w inverter. I have used that inverter to run my 4.5" grinder. If I loaded the grinder down it would trip the inverter off. I now have a 2000w HF inverter but have not used it for anything that heavy nor with the battery charger.
I have considered mounting the 2000 w inverter in my pickup but have not found a suitable place. I did mount a 2nd battery with disconnect to power the inverter. I connect the inverter with a set of jumper cables with the clamps on one end replaced with copper lugs.

 

[k0ua]

I dont know why but my Ryobi battery charger would not work on my 12-120v 800w inverter. I have used that inverter to run my 4.5" grinder. If I loaded the grinder down it would trip the inverter off. I now have a 2000w HF inverter but have not used it for anything that heavy nor with the battery charger.

you have to wonder if the battery charger did not like the nasty square waveform that comes out of most inverters.

 

[Sodo]

The photo of all the sparks in the smoking grass didn't come through. And what happen when you need 37 cuts? :laughing:

Bruce

Bruce if I had to cut 37 cables I'd go find a more interesting project.

I have a $25 400w inverter hardwired to my pickup. I use it mostly for charging DeWalt batteries. It can't run a two-battery 240w DeWalt charger with 2 batteries in it. Will charge one though. I wish it had a true 400w but it was only $25! Problem with bigger inverters is they suck more power, you have to choose your battles.

 

[DFB]

Something like this?

Amazon.com : 150W 12V DC to 110V AC Car Charger/Car Inverter with 2.1A USB Port, AC Outlet & DC Power Inverter - Works with Apple, Samsung, Sony, ASUS & more Laptops, Smartphones, Tablets, MP3 Players, Portable DVD Players, Handheld Gaming Consoles &

Amazon.com : CyberPower CPS100BU 100 Watt Swivel Head Mobile Power Inverter with USB Charging Port and AC Outlet (Black) : Vehicle Power Inverters : Car Electronics

I dunno never really looked at those newer types :confused3:

I have a 400 watt dual 120vac outlet AC Delco unit so I was thinking of more like some of these types for about $30-$50

Amazon.com: 400 watt power invertor

Amazon.com: 300 watt power invertor

My Milwaukee dual volt 12/18 charger is 2.1 amp

I dont know why but my Ryobi battery charger would not work on my 12-120v 800w inverter. I have used that inverter to run my 4.5" grinder. If I loaded the grinder down it would trip the inverter off. I now have a 2000w HF inverter but have not used it for anything that heavy nor with the battery charger.
I have considered mounting the 2000 w inverter in my pickup but have not found a suitable place. I did mount a 2nd battery with disconnect to power the inverter. I connect the inverter with a set of jumper cables with the clamps on one end replaced with copper lugs.

I haven't ever had a need to try it but I guess I will experiment now!

 

[crackerjack222]

"you have to wonder if the battery charger did not like the nasty square waveform that comes out of most inverters."

That would be my guess......

 

[DFB]

Boy if wasn't one for being brand specific and I was looking for a deal on a cordless grinder unit this offer seems to hard to pass up.
:scratchchin:

Metabo 602170530 18V 5.2 Ah Cordless Lithium-Ion 4-1-2 in. Angle Grinder Kit

Take an extra $20 off for labor day sale too


Sites-cpooutlets-Site

 

[groundcover]

I have the Milwaukee V28 grinder, just got a couple of the new M28 batteries for it, sweet tool but a bit spendy .

 

[ultrarunner]

In 1990 I paid $1300 for my 1800W invertor... it powers my small skil saw, air compressor and most of all... my Spartan Cable Machine.

For some reason it does not work well with my chargers from that same era... Bosch and Makita.

When I followed up with both companies I was told the inverter made dirty power...

So I contacted Stat Power and leaned for another $1000 or a total of $2200 in 1990 in 1990 dollars I could buy a sine wave inverter that was designed for sensitive electronics used on boats.

My solution was to buy Makita and Bosch 12v cigarette lighter chargers which still work great and keep my inverter as is...

 

[chim]

.............When working with him on a carpet job he stopped and got a Dewalt 4-1/2" grinder............I was totally unimpressed....................

As I mentioned in an earlier post, there's a huge difference between the 18V cutoff tool and the 20V Max grinder. My bet would be the tool your BIL picked up was the old 18V. The last time I sharpened the 3 blades on my RFM the 20V grinder did all 3 and had power remaining. The 18V tool I got rid of would have gone through several batteries.

 

[Sodo]

Chim I wonder if the biggest difference is an 18v tool is likely to have old NiCad batteries. Never judge a man's tool until you've walked a mile discussing how he treats his batteries. Often they are not treated at all, neglected, and NiCads need to be kept charged and run up & down. They were fragile in that way. If NiCads sit for a year and self-discharge they may never come back. 18v is probably NiCads which are About 10 yrs old technology, so you know the batteries are older than 5 yrs.

Quality NiCad batteries last only 3-5 years anyway and then capacity diminishes significantly. 20v are probably newer Li-Ion type, much better technology, and sometimes more power too. The old 18v unit with new 2015 batteries would perform well.

 

[Silvic]

OK it was 57 seconds to cut a 3/4" logging cable. Can't tell you how many times but probably 10-20 cables per battery.

Bruce if I had to cut 37 cables I'd go find a more interesting project.

Thanks for the test.
I know the last time I had to cut a cable off it was about 10-12 cuts to completely free the rotor. If it was 37 cuts to free it I would be in a world of hurt. If your estimates are correct then I could expect to get one battery to one tangle-up. As I originally posted my experience with cordless is limited. I had not realized there were cigarette lighter/accessory plug chargers for the battery packs. That is an idea. As long as I don't tangle more often/frequently than the charger can recharge the battery pack then 10 cuts might just make it.(until a really good tangle requires more cuts than that then SOL)

The dirty power of most inverters would be a problem with the chargers I am certain.

 

[Sodo]

Thanks for the reminder to cut that cable out!

Get a good brand you will have many other uses for a good tool set. I rarely uncoil an extension cord anymore and I do a LOT of stuff. Wish I had newer batteries mine are 2011 & 2012 NiCads on their last legs.

 

[DFB]

Hooked up my old invertor just for giggles and grins and played around when I got home from working tonight, a combined 70hrs at the farm and with marketing this week doesn't leave me much time


So looking at my old invertor Amazon.com: ACDelco 59-204 400 Watt Power Inverter With Two AC Outlets: Home Improvement, I cant really discern a date code on it but I know I bought it sometime in the early 2000's before I left Maine in 2006, and using a 12 volt plug in a tailgate accessory outlet on my old Durango a 2002 I hooked up every charger I had...

And they all worked AOK.

A new Milwaukee dual volt 12/18 was first. Everything worked fine first battery reached charge 12v then cycled over to the 18v. I set it that way for time constraints,. A 1.5 12v is usually less than 30min from fully drained to full charge

Then tried my Makita quick charger from my second Makita 18v NiCad drill kit one of the last model releases just before the lion changeover, yup lit, charged and the lights changed color. :thumbsup:

Next was my OLD greenish colored Makita NiCad charger from my very first Makita18v kit. Drill, saw and flashlight combo bought sometime in the 90's. Drill got stolen at work about 5 years ago. Still have the flashlight for what it worth, but the cordless saw I still use often, almost daily, and so far its kept me from away adding a new Milwaukee cordless lion powered circular saw. And that old charger worked ok too.

After that, a 12v Makita NiCad charger and battery from a complete drill kit (case included) that I picked up at the flea market for 3 bucks! Again no problem.

And last a Harbor Frieght 18V quick charger from a 5 3/8 cordless circular saw that I still have and still use on occasion and that saw also (once again) keeps me from buying a new Milwaukee 12v Fuel replacement.

Surprisingly (even to me :laughing: ) that unit had no issues either

So I guess I'm good

One quirk I did notice was that when I was swapping over different chargers with the invertor on but the engine off several times it wouldn't recognize the charger being plugged in (or maybe the charger wouldn't recognize the voltage signal :scratchchin: ) switching the invertor off first and then back on after plugging the charger in first, took of resetting it.

Last but not least 2 chargers at once engine off only took a minute or so to set the low voltage alarm. Motor running 2 plugged in was fine