cordless angle grinders?

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Does anyone here use cordless angle grinders? I'm thinking of getting a 4.5" for the jobs where its difficult or dangerous to run a lead but I don't want to waste my time or money if they are gutless.
Reply:I use a dewalt one a lot. It does OK and I use it mostly on ladder jobs when installing over head doors. It's an 18 one and the batteries don't last very long. It does come in very handy but if you are going to do a lot of regular grinding, I don't think you will happy with it. I wish I had better news but its the truthMiller DVI2Lincoln Precision Tig 225Thermodynamics Cutmaster 38Everything else needed.
Reply:I use a milwaukee 28 volt, works great with flap discs & cutoff wheels. gets about 15 minutes out of a fully charged battery
Reply:I have the dewalt one and it works great, until the batt runs out.  For quick jobs, it is great, for a long job, I would want a corded one.    OR at least a few batts, but now you need a quick charger plugged in somewhere.Come try it out and stay a while.
Reply:15 mins? thanks for the replies, I will save my cash
Reply:I have the Makita 18v unit. On a fully lit battery, you get about 10-15 minutes of grinding; more like 5-10 on heavy grinding. I have used the Dewalt, and got the same results.They are super for quick jobs; cutting a pesky lock off, buying a little clearance on a bent part in the boonies, sharpening an axe while camping. But around home, I must say a regular power grinder is 100 times better.And then, after so much work...... you have it in your hand, and you look over to your side...... and the runner has run off. Leaving you holding the prize, wondering when the runner will return.
Reply:HF sells a 4" pnumatic angle grinder for around $20 bucks... Not a bad tool to have for wet locations.
Reply:i dont think 15 minutes of grinding is worth buy a cordless grinder.
Reply:I got a makita 18 volt cordless for xmas, i find myself using it more than my old grinders now. I can have it on the table without a chord to trip over when im not planning on grinding much. 15 minutes is a lot of grinding, so if you are going to spend that much time grinding you shouldnt mind spending the extra minute to plug in the extension cord and grinder. I like mine for those quick jobs like hackng off bolts, or buff to clean burrs, slag, dross and spatter up etc. I like the makita (not sure about the other brands) cause it has a light that comes on when you are using too much pressure and it keeps you from wearing down the battery or the grinder, if you push too hard too long or the battery is close to being dead, the light will come on and shut the grinder off, also helps with kick back.Nothing Ever Got Done By Quitting, Never Give Up.
Reply:hi, I got a 18 volt Dewalt too. Yes, battery life is short but you can't beat it with a cutting wheel for a couple of cuts.Depending on your needs it sure beats dragging a cord around. Great for cutting off a few bolts or nuts to. All these toys have their place, that's why they keep making more and more and more.
Reply:Originally Posted by gto_welder01i dont think 15 minutes of grinding is worth buy a cordless grinder.