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kornomaniac

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Posts posted by kornomaniac

  1. 20700 cells ( 20mm diameter and 70 mm long ) are only slightly larger then the normal 18650 cells ( 18mm diameter en 650 mm long )

     

    So all in all that battery should only be about 0.5 to 1 centimeter wider and 1 to 1.5 centimeter longer/higher :)

    • Like 1
  2. Thats also different in Every country.  Here in belgium Makita does not sell those tools together. I comvibe those myself to well in my store.  but im positive i have seen pictures  from home depot with a kit of those 2 combined.

     

    Easiest would be to call a official dealer of the country where you live and ask :)

  3. I know Bosch and Makita both have a line of production tools used in defence/Aerospace industries/ car manufacture.

     

    These tools all have extreme exact torque settings. 

     

    These tools are very expensive :P  

  4. 11 hours ago, Mitchell Newhard said:

     Milwaukee just slapped out a "18v9amp" battery that is way better then DeWalts "60v/20v6amp" 

     

    That one is not really true. All current Milwaukee and dewalt ( including flexvolt) batteries use the normal sized 18650 size lithium cells.  These cells which we have used in battery packs for the last 10 years are at the end of their development cycle. 

     

    The more amps we put into a cell, the less current we can draw from those cells. Its a trade off inherent to the lithium cell. Its a proven fact that the 3000 milliamp cells used in Bosch/Hitachi 6 amp battery and in Milwaukee 9 amp pack CANNOT deliver as much current as the 2000 milliamp cells that dewalt uses in their current 6 amp flexvolt  battery.

     

    Upping the voltages instead of the amps drawn also has an inherent positive effect on runtime because the 60v battery will have lower resistance then the 18v large amp draw pack of Milwaukee.

     

    For heavy power draw uses don't be surprised if the dewalt battery manages to keep up with the Milwaukee battery because of inherent less resistance and power loss in a high voltage pack/using 2 amp cells.

     

    The follow up lithium cell for future battery packs will be the 20700 or 21700 size lithium. These larger sized cells still have ALOT of reach to keep growing the coming years. These cells can provide alot more current.

     

    Dewalt has already shown a 20v-9amp/60v-3amp flexvolt battery pack that will use these newer cells. This battery will dance circles around Milwaukee 9 amp battery.

    • Like 6
  5. 1 hour ago, dwain said:

     

    Yep I believe their current output is the issue, which raises questions on the 6Ah batteries from Bosch, Hitachi, Milwaukee etc.

     

     Font have to raise questions. Bosch's 6 amp batteries are good for drill drivers, who do not draw high enough amps to tax the cells. Put the 6 amp on their grinder and see your runtime be less then a 5 amp because of internal resistance.

     

    Its been proven on YouTube before

  6. 3 hours ago, MikeInCtown said:

    Well I know for a fact that my girlfriend's mom has a 20v lithium black and decker weedeater that has the motor in the tail section. It has two speeds, though there is only one trimmer line that spins vs two as a normal weedeater would have.

     

    Personally I can't see how you wouldn't want the motor to be in the rear. Because the head and shaft length, you need something to counterbalance that weight further away. By putting a motor and gearbox near the spool, you only make it unbalanced.

     

    You really should pick up a dewalt or makita cordless string trimmer. They both have the motor near the head.  You actually need that extra weight at the front to counter the battery weight at the back.

    If anything Milwaukee sells alot of marketing.  I'll wait on some reviews by real people  before believing any of the milwaukee Kool aid.

  7. 14 hours ago, JimboS1ice said:

    Bosch has a bunch of new grinders coming out, cordless grinders... not brushless but supposed to be very powerful.

    That new 4 pole angle grinder is already out in belgium. I cant feel alot of difference between the old and the newer 4 pole model really. Still does not compare to the Brushless models from milwaukee, makita and Metabo.

     

    Like dwain said, i posted some pictures of an upcoming brushless model that was introduced at the bosch european show a few weeks ago :)

     

  8. 1 hour ago, JimboS1ice said:

     

    Yea it's cool but it just pisses me off a little bit, I've made the right choice with Milwaukee recip and circ saw and I definitely don't regret it now.

     

     

    We stil do not know how Milwaukee sds max and new mitre saw will perform When you use a m18 5 amp pack.

     

    Those tools werd designed to use the 9 amp pack. Altho the 5 amp will run on those tools i'm 99 procent sure they will have limited power/endurance with quickly overheating batteries if you use a 5 amp.

     

    Perhaps, to prevent dissappointment in their users, dewalt limited the use to 60v batteries ? :)

    • Like 1
  9. Really interested to see how dewalt manages to switch voltages in the battery.

     

    The battery is labeled 20v / 6 amp.

     

    Going to 60v should arrange the cells in a different order. 

     

    Interesting times.....

  10. On 3/19/2016 at 0:29 PM, WigWagWorkshop said:

    I would love to see an actual cost comparison to manufacture a gas vs battery vs plugin electric mower. 

     

    -Steven

    Check out the ferrari of cordless OPE Pellenc.

     

    Their catalog on their website gives you a good comparison between gas costs and energy costs.

     

    Li-ion wins by a looooong shot

  11. 3 hours ago, PH1 said:

     

    Tesla has not used 20700 cells for any of their cars (or power walls) yet.

    Tesla Roadster, Model S and X all use standard size 18650 cells.

    The cheaper Model 3 will however use 20700 cells when it goes into production.

    Nitpicking aside this is what i meant yep :)

    • Like 1
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