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HiltiWpg

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Everything posted by HiltiWpg

  1. “Ecx” just combines a flat blade with a #1 and #2 Robertson. (Square) If you use a Robertson, the ecx is quite pointless. Sent from my iPhone using Tapatalk
  2. You may want to read a little further down. I wasn’t using a specific cell, which I should have, and i did. I was generalizing with an entry level cell/battery. I wasn’t talking about the Flexvolt initially which I should have, specifically. So I did. Sent from my iPhone using Tapatalk
  3. Your math is wrong. 108wa would be the “optimal” discharge rate under “optimal” load. Overloading the motor or pushing it beyond its rated optimal discharge rate will most certainly drain it rapidly. As you push the battery, it heats up etc. There are variables at work that need to be accounted for. You don’t consume watts. Watts are the rate at which energy is consumed. Also, isn’t the Flexvolt grinder rated at 1700 watts at 54v? (31.5a) Those 20700 cells have a max discharge rate of 30-40a. 3ah = 162wa @ 31.5a would be 5.1 minutes of runtime, roughly. If those same cells are present in the Milwaukee etc, the end result would be roughly the same. Sent from my iPhone using Tapatalk
  4. Because they can use 4 rows? Maybe that’s why? It was an example.The math is sound. Regardless of 3 sets of series/parallel or 4, the manufacturers spec for the batteries is what matters. In series, your voltage adds up and your current remains the same, hence “3.6v x 5 = 18v”. The spec of the cell is 9.6a max, 4.3a optimal. In parallel current adds up and voltage remains the same. Each row is 4.3a, 4 rows parallel is 17.2a. Not sure how you didn’t get that. I should have used the High drain 20700 cells to be more specific with my example. The higher discharge rate would have simplified it. Sent from my iPhone using Tapatalk
  5. I am probably off a bit on the battery numbers, but close enough! Obviously no motor is 100% efficient and we don't know the PF, losses in the electronics etc, but I think the point is made. Sent from my Pixel 2 XL using Tapatalk
  6. A Samsung 21700 has a max discharge rate of 9.6A continuous, or something like that. With 4 parallel rows of cells, (each row is 3.6v x 5 = 18v 9A) that's 36A roughly of max current. For optimum life cycle, it is 1/2 of that, or 4.3 A continuous per cell or 16A using a 4 rows. 18v x 16a = 288 watts or just under 1/2 Horsepower sustained load. Just about 1 HP peak. Sent from my Pixel 2 XL using Tapatalk
  7. Except that it has everything to do with it. Cord connected tools don't run at 15a, first of all. Most tools are rated non-continuous which is a maxiumum 80% of 15A (max rating of circuit) or 12A. That's the max. The inrush current is typically 1.5x the continuous current. Typical household connected tools are well under 8A under load. The max inrush of current may spike to 12A etc, but any higher and your breaker may trip. This is why we have electrical standards. Cordless tools are not corded tools with a battery. Flexvolt could get close, but they are hybrid. Suggesting that a cordless power tool sustains 100-200 amps is ludicrous. For real though, the wire would need to be 1/0 ROFL!!! The tool would be massive and weight a ton!!! You can simply look up the manufacturers specifications on a battery cell and see what current is available and use ohms law to calculate the actual current capacity and maximum sustainable draw. Sent from my Pixel 2 XL using Tapatalk
  8. Voltage and current are directly proportional and current is inversely proportional to the load. Higher voltage = lower current, lower voltage = higher current. Having more "electrical pressure" reduces current requirement , which means less potential heat and smaller wire gauge etc. If they address heat issues etc, there is no reason these tools won't be competitive. Sent from my Pixel 2 XL using Tapatalk
  9. Except that flexvolt is already that big. The power delivery will be roughly the same. Sent from my Pixel 2 XL using Tapatalk
  10. So much wrong with this. Firstly, there is no 100amp cordless tool. Your entire house is only 100-200amps. Second, it sure as hell isn't 60amps either. Your car's jumper cables would be smaller than the wiring inside that tool, if it existed. Your standard household receptacle is 15A, or 20A T-Slot. Sent from my Pixel 2 XL using Tapatalk
  11. Most people don't understand the relationship between voltage and current. DeWalt's marketing is proof of that. 18 volts and 60 volts can exactly do the same amount of work. Period. As long as the lower voltage batteries/tools can handle the current demand, there is no reason to worry about it, their engineers get paid to do that for us! While the 18V, high demand might be more expensive due to increased material costs for upsizing wires and electronics, the battery costs should be slightly cheaper and offset the tool costs. (Compared to 18v x2 or Flexvolt) Sent from my Pixel 2 XL using Tapatalk
  12. Anecdotal evidence and opinion aside, Milwaukee does make “good” cordless saws. They are hardly close to being the “king” of cordless recip saws. Recent reviews and testing put the 18x2 Makita Rear handle and Dewalt Flexvolt quite a bit ahead of the M18 Fuel offerings. That said, I am sure there is a newer Fuel coming out shortly. As for recip saws, the M18 Fuel is nowhere near top of the heap. In fairness to Milwaukee, their model is a little dated. Sent from my iPhone using Tapatalk
  13. Looks more like a legit licensed product, not a clone. Sent from my iPhone using Tapatalk
  14. I bought these last week, absolutely love them. I prefer composites. Sent from my iPhone using Tapatalk
  15. Man, I spent an hour scouring Makita Japan for a newer model!!! Whew! Sent from my Pixel 2 XL using Tapatalk
  16. I want one! Compact oscillating fan! Sent from my Pixel 2 XL using Tapatalk
  17. Note sure I follow, it is the current model. The first one came out in 2014 I think, this is the “newest”. Sent from my iPhone using Tapatalk
  18. Because reasons... It is soooooo much quieter! Sent from my iPhone using Tapatalk
  19. The recip is worth it. Excellent vibration dampening, size etc. It’s a little heavy, but not too heavy to prevent precise one-handed use. I always assumed that Flexvolt was going to be 120v. It made so much sense. They could literally take over every commercial job site. No power, no longer problem, slap in 2 batteries and go. No Batteries, plug it in. Table saws, chop saws, mitre saws, SDS Max. It would have been beautiful! Sent from my iPhone using Tapatalk
  20. I bought the subcompact Drill, Impact, Recip and Rotary Hammer Drill. I.Love.Them. Working in tight/crawl spaces, on ladders and on lifts, I like the size and weight. I don't want a battery that weighs more than my current impact and battery combined! A flexvolt battery looks rediculous on a small tool. If they would have went full 120v AC or DC I think Flexvolt would have been perfect for big jobsite tools. Sent from my Pixel 2 XL using Tapatalk
  21. Power is comparable. The Dewalt is certainly newer design and tech. Dewalt seems to own all things wood. I am not a Dewalt guy, but if I was looking for a new mitre saw, I wouldn’t think twice about buying a Dewalt. Milwaukee makes some great stuff, but the emphasis isn’t on saws. They make good ones, but they seem to be playing catch-up to Dewalt. Don’t buy Flexvolt because it has a bigger number. Buy it because Dewalt makes good saws. Don’t buy based on hype.
  22. You don't know how eletricimuty works huh? 1/2 HP motor = 373 watts 1 HP = 746 watts So let's play. 373 watts @ 56 volts = 6a 373 watts @ 36 volts = 10.3A See how that works? Lower voltage can do the same amount of work. Higher voltage = lower current, Higher current = Lower voltage. As long as the current is available, it can certainly do exactly the same work. Saying that you can't run a saw because it isn't a DeWalt fake 60volt is just wrong. It's ignorant. #ohmslaw Higher voltage is definitely better, lower current means smaller wire, lower heat etc. But you get the idea. Sent from my Pixel 2 XL using Tapatalk
  23. “Hey guys, I need to sink 5 foot screws, what do you have?” Sent from my iPhone using Tapatalk
  24. I think you need to do a grinder test, not a battery test. Get the WA as close as possible and let the grinders work it out. Having a 9AH vs a 5AH doesn't make sense. It may unfairly tip the scales in favor a tool that would perform the same or worse than another tool if it was tested with a lower capacity battery. Sent from my Pixel 2 XL using Tapatalk
  25. 3 lb battery? Damn. Sent from my iPhone using Tapatalk
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