DeWalt Drills

raylo32

What it means is that all batteries are *rated* at their nominal charged voltages and that is determined by the cell type and how many there are in series. And ALL batteries will display a higher than rated charge when pulled off a charger. By definition the voltage of the charger HAS to be higher than the battery to induce the charging current flow. It takes awhile for the battery voltage to drift down after charging.

Batteries also will ALWAYS display a lower than rated voltage when they are discharged. The amount lower depends on the type of battery and the level of discharge.

In the case of the Dewalt 20v the "20v" is merely a product name, not a battery rating... an intended confusion that they are happy to encourage. They are using the fact that the battery will read close to 20 volts for some period of time after charging to try to fool you that the batteries are rated at 20 volts when in fact they are not. Read the fine print on the box.

TurboDIYer

Oh,Sorry about that!

TurboDIYer

Buut none of you have given me a true answer what's the difference of the 18v vs 20v compact drill.

raylo32

Not sure there is any difference with XRP sieries. Hard to tell w/o taking one apart. It might have a bigger motor that that will make more torque by drawing a little more current. It might have a somewhat different transmission and/or some other details. Hard to say....

raylo32

Here is the blurb from Dewalt on their voltage sleight of hand for the 12v Max and 20v Max lines. The key word to remember is "Max". In the case of the 12v Max the real voltage is 10.8 volts which is 6 1.8v cells (3pairs)in series.

With respect to 12V MAX*: Maximum initial battery voltage (measured without a workload) is 12 volts. Nominal voltage is 10.8.
With respect to 20V MAX*:Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.

Sorry, correction... individual cells are 3.6 v so 10.8v packs have 3 in series, 18v packs (including 20vMax) have 5 in series. These packs (esp the 3.0 amp-hour size) usually have pairs of cells in parallel (for higher capacity) that are then connected up in series. 5 pairs for 18v and 3 pairs for 10.8v. Of course this applies to typical li-ion. Other battery types have different per cell voltages.

ratherbefishing

Your link didn't work for me. But, aren't the 18V Dewalt tools NiCad and the 20V Lithium Ion? If so, there could be other construction differences or maye DeWalt is just encouraging people to move away from NiCd. If you look at the Dewalt website, the banners are promoting the 12V & 20V LiIon lines: http://dewalt.com/Home.aspx. Or you could just call them, 1-800-4-DEWALT

woodworkbykirk

the new 20 volt lith ion batteries is just another bs marketing scheme by dewalt if you ask me... i dont know how many times they have marketed their tools as " the biggest revolution in cordless, mitre saws, table saws..etc..." yet their on average 4 years later putting out tools to match the latest technology. makita and milwaukee came out with lithium ion technology in 2004, shortly after bosch, hitachi and metabo.. then dewalt came out with their 36v batteries which were nothing more than giant nicads... which turned out to be garbage,,, then in 2008 they release their nano tech batteries.. also turned out to not last thus being crap.. then their 2nd gen of nano tech batteries.. that never caught on.. and now they have their 20 volt.

ive been in the high end renovation and custom home construction industry for 9 years now, in that time ive used countless power tools and spent close to $25,000 on my own gear... in my experience.. dewalt is one of the weakest pro grade tool manufacturers.. if your looking to buy a high quality cordless drill. makita makes one of the 3 best on the market next to festool and panasonic, not far behind is bosch. seeing how makita were the ones who originated the cordless drill, you cant go wrong with them the only problems ive ever had with my makita and bosch drills were when i went to grab it and wasnt there... one of the other guys on teh crew snagged it when i wasnt looking to drive some screws while setting a door.. the dewalt stuff would be left untouched sitting in the jobsite tool box

woodworkbykirk

and as for who owns who...
stanley bought out/merged with black and deckers tool division a little over two years ago.. so they now combined have,, all stanley lines of hand tools, bostich, dewalt, black and decker, porter cable and delta

TTI owns, milwaukee, rigid, ryobi, stiletto, and i believe husky

Robert Bosch is, Bosch tools, dremel, skil, american vermont

singularly owned tool companies are, makita, same goes for hitachi and metabo and festool

DrHicks

I don't know about who owns who, but I have a Stanley 18 gauge finish nailer, and it's a twin to the Bostich I have.

Rob1975

Milwaukee is owned by TTI.

http://www.ttigroup.com/en/our_brands

raylo32

They may still offer NiCds and/or NiMHs, also but there is an XRP 18 volt lithium line. One example here. The last Dewalt that was advertised honestly.

http://www.northerntool.com/shop/too...ci_kw={keyword}

Phillies48

Unfortunately, I am unable to answer your question about the pricing, but after reading the comments I will say, that I have used DeWalt EVERYTHING. Almost all of my tools are DeWalt brand, and if they're not, when they need to be replaced, they will be. I have only had one problem with one of my drills which is nothing if you knew how many DeWalt tools I own. I highly recommend their products, however I still can not explain why the price is as such.

EvilNCarnate

Specs....
One has a 30 minute charger, XRP is extended run time and touts an all metal drive system.... basically it comes down to the features. Think of the new camaro's they may all have the same body but some have a V6, some have a V8 and some are an SS with all the bells.

Oh and your other 18v ones have an LED light on them.

TurboDIYer

Well think of this, the V6 is more expensive than the V8 in this case.

woodworkbykirk

another thing is though the xrp batteries charge faster, they dont last as long in terms of overall life. i know many tradesman that have bought the xrp drills only to have the batteries completely die rather quick, they then replaced just the batteries with the regular nicad's which lasted longer.. i believe fine homebuilding had a thing on just this in one issue . it had to do with the quick charge