DEWALT 140-Watt Power Inverter w/ Dual USB Ports EXPIRED

From what I understand, these are good for "Nothing"!

Quote from 700MHz : From what I understand, these are good for "Nothing"!

They are good for breast milk pumps. Never found another use

I guess it would be good if had to run something at 120v AC that required 1 amp or less.
Not sure what that would be besides breast pumps, as mentioned above.

This actually works well when I am working remote to power dewalt charger to recharge my dewalt batteries

Plenty of things they can be used for: laptop chargers, small LED TVs like in a camper, and most important, a heated cat bed so my cat was warm in my RV or front of my truck even when I was driving in winter.

Main question on this is if it has a built-in fan, and if so, it is loud and on all the time. I bought one from site (and it was a reputable brand, not junky or anything), but it his this tiny screeching fan that is on all the time! It's OK to have a fan that comes on under heavy load to cool the electronics, but some just always have it on (which wastes power too). I don't this model is like that, but just a warning. Actually I like that this is is small and probably would meet my needs and better than the others I have (provided it doesn't have a loud fan, of course).

EDIT UPDATE: This is SILENT which is great. At this price (which might be a normal price for this from HD; I'm not sure), I will probably pick one up. Even though I have a number of other small inverters, I like the small size and silent operation. I have larger ones like 300W but usually I don't need that much power. If you want something larger like for a Microwave, you will need 1000W and up, and those need to be connected directly to your battery, not a lighter plug. So for little things like I mentioned above, this is nice, plus keeps with my all-DeWalt decor. (except for some Milwaukee things too...)

Quote from BuyAChiaPet : This actually works well when I am working remote to power dewalt charger to recharge my dewalt batteries

It sounds silly but you're exactly right -- that's a good use for something like this too. Also for any other brand of tool charger.
Most of these brands do have car-powered (lighter-plug) chargers optimized for that purpose (so you don't waste power going up to 120V, and then back down to charging voltage). But they tend to be expensive, about $100 for the name brands like DeWalt, $50 for the Ryobi one. So this can do the job much cheaper. But if you do it all the time in a remote location with no AC power, you might opt for the 12V-powered one.
Also if you get one of the newer sets with a "Fast Charger" that can charge a large battery quickly, those can suck a couple of hundred Watts, so those would overload this. For basic model chargers this would be fine. And I've heard that slow-charging a battery is actually better for them anyway.

Quote from BuyAChiaPet : This actually works well when I am working remote to power dewalt charger to recharge my dewalt batteries

I wonder how that compares speed-wise to the (ludicrously expensive) Dewalt dedicated car charger.

This does NOT work with Dewalt batteries (like 20-Volt MAX), which really limits its usefulness.

In contrast, Ryobi has a battery-powered inverter:
https://www.homedepot.com/p/RYOBI.../308460871

Dewalt, get your $h!t together!

Will this power a HP printer?

How would this compare to slightly less powerful walmart inverter for $10?
https://www.walmart.com/ip/EverSt.../109463375

additionally, walmart has a 400W for $5 more
https://www.walmart.com/ip/EverSt.../189309462

Quote from parks.wr : They are good for breast milk pumps. Never found another use

we just bought the AA battery pack for our pump, ran for a LONG time on 8 rechargable eneloop AA's

Quote from captjde : This does NOT work with Dewalt batteries (like 20-Volt MAX), which really limits its usefulness. In contrast, Ryobi has a battery-powered inverter: https://www.homedepot.com/p/RYOBI.../308460871 Dewalt, get your $h!t together!

Apples and oranges, my friend.

These thing's are absolutely horrendous and getting them to work with laptop chargers.