So ummmmm... WHERE'S THE OTHER ummmm, THIRTY SIX volts of power everyone thought they were getting?? Hahaha..
Good thing it's got that big battery to extend the runtime.. Oh wait, it's less than half the run time of Milwaukee's 5.0?? Explain to me again WHY people are buying these... Oh, that's right - there's a sticker on it with bigger numbers.., gotcha..
I'd almost bet that Milwaukee's brushed sawzall will cut just as fast as that monstrosity.
If it's not putting out more power then it's not using more juice. Look at the watt hours. Likely has more runtime than a Mikwaukee 5.0. The HD9.0 and the FlexVolt 3.0/9.0 will be similar. The lack of adjustable shoe and rafter hook on the Dewalt recip are a fail but the saw itself is a good unit, especially for Dewalt, who can't make a recip to save their lives. The grinder is more powerful than Fuel, and the joist drill has more power than a Super Hawg while being stout like a Hole Hawg. I love my Fuel gear and have thousands worth of M18 but let's not pretend big red is perfect.
I don't really have a dog in this fight but once the motor safety times out and it starts cutting again the DeWalt seems to cruise through the last 2 sets of nails with less problem than the Milwaukee. You could tell each time the Milwaukee hit a set of nails and once the DeWalt started up again it didn't seem really phased.
Yes, it's higher voltage and lower amp hour but the watt hours tell the story. The stroke length and stroke per minute are the same, the same work is being done physically, so similar amounts of energy will be consumed. I was hesitant about the 2.0 and 3.0 designations on FlexVolt at first too, but the specs don't lie. You'll have shorter run time on tools that actually use more power, i.e.; 500 extra rpm on the grinder, 800 extra rpm on the circular saw. On tools doing the same thing runtime will be very comparable.
That doesn't appear to be the result here. Starts at 3:17.
I get about 25 mins hard use on my Milwaukee Fuel Grinder with a 5.0 battery. If the Dewalt Flexvolt Grinder can only get 10 to 15 mins of power now......how much less in runtime is it going to have compared to the Milwaukee 9.0 batteries when that's available everywhere.
He mentions "probably 15 minutes of runtime". He also mentions it has "the power of a corded model" and "it's the most powerful cordless grinder they've used". He also states it's battery life is right up there with the best runtime they've seen on a cordless model.
He also states it's battery life is right up there with the best runtime they've seen on a cordless model.
I was pretty poor in my paraphrasing there, sorry about that. I didn't mean to insinuate the FlexVolt had the best runtime, rather that it "hangs with the best of them", not the best, but better than average.
I imagine going forward it will always be a matter of balancing power and runtime. Dewalt is chasing pure power and big numbers, Milwaukee tends to be more efficient with regards to runtime in my experience.
I also agree with you re: runtime. I find the Fuel plenty powerful, and when you're going hard on a Sawzall or grinder you can kill them in 15 minutes. Every extra minute is important when you're trying to keep ahead of your charger(s). The FlexVolt charger being high amp and fan-cooled is one of the smarter things they could have ripped off from Makita. Milwaukee is going to have to be much more generous with their Rapid Chargers with the 6.0 and 9.0 batteries out. You can easily get ahead of your batteries on their standard 3.0 amp charger. The 5.0 ends up taking 100 minutes or so to charge lol.
Dewalt vs Milwaukee Sawzall.

I don't think their perfect. There are things i like about both brands. Competitiveness is good for the consumer. But I did see a lot of unfair Milwaukee bashing when they first introduce the Flexvolt, and this did show a first account, that until you run the tools side by side you never know the benefits compared to the other.
I don't think their ideal. There are things i like about both brands. Aggressiveness is useful for the shopper. In any case, I saw a great deal of out of line Milwaukee bashing when they first present the Flexvolt, and this showed a first record, that until you run the apparatuses next to each other you never know the advantages contrasted with the other.
They are a spammer, new tactic.