Showing posts with label xrp. Show all posts
Showing posts with label xrp. Show all posts

Monday, 18 January 2010

Dewalt DCD925B2 Cordless Hammer Drill XRP

Dewalt DCD925 B2 18v Drill Product Information









The DCD925 is a versatile and powerful cordless hammer drill that is suitable for a wide range of uses at home or in the workplace.

As with all Dewalt cordless power tools this model is of an improved design over its predessor, the DC925 combi drill. This is by way of its overall design, as well as its ergonomics and specifications.

The Dewalt DCD925B2 is driven by a powerful 18 volt battery motor for heavy duty drilling and screwdriving applications. The batteries supplied with this unit as standard are the renowned XRP 18v NiMh battery packs. Two of these are included with the purchase of the DCD925 giving the drill an excellent runtime whether it is being used for screwdriving applications or work drilling into metal, wood, plastics, or masonry. The capacity of the rechargeable battery packs is 2.6aH, and when placed in the packaged charger unit require only a 40 minute charge time to be ready for use with full power.

The battery charger is an "intelligent" Dewalt Battery Charger that maintains the battery condition as well as charging it. It can also be used for a quick top up of the DCD925's battery packs if needed, and at any time.

Being a combination drill this new model has three (3) modes; 1) Hammer action for drilling into all types of masonry including bricks, blocks, slabs, plaster, stone, marble, and light concrete. 2) Drilling mode used for rapid boring into all types of hard and soft woods as well as plastics and metals. 3) Screwdriver mode for controlled screwing of fasteners and fixings.

Three (3) Speed Metal Gearbox

To allow this drill to perform over a wide speed range (both chuck and motor) the Dewalt DCD925B2 is fitted with a three (3) speed gearbox. Coupled with an ultra smooth gear selector this gives the drill three operating speeds. When used in conjunction with its variable trigger control this gives speed ranges of:


(1) 0-500 rpm / (2) 0-1250rpm / (3) 0-2000rpm


Unlike older models of cordless drill drivers and dedicated cordless hammer drills it is this wide speed range that makes the DCD925 a versatile and great all round tool for the professional user.

Comparison To The Dewalt DC988KA

The new model is sold alongside the DC988KA model combination drill which is well known to most builders, joiners, plumbers, electricians, and other professional tradesmen. The DC988 is a good value for money cordless drill that has been on sale for several years now, having been dropped from the Dewalt range at one point, and then resurrected again.

With lower specifications than the new DCD925 it is normally not first choice for the user looking to buy the best and latest model, but is aimed at the user that has a limited budget but which would rather stick with a Dewalt Power Tool because of their strength, robustness, and high performance.

Dewalt DCD925B Specifications:
  • 3 Mode Combination Drill
  • 18 Volt Battery
  • 2.6aH Battery Capacity
  • 13mm Chuck Capacity
  • 450w Electric Motor
  • Weight - 2.9 kg
  • Batteries x2 (NiMh)
  • 40 Minute Full Charge Type
  • Intelligent Battery Charger
  • Max Torque 55 Nm
  • Variable Speed & Reverse Action
  • 13mm Keyless Chuck (Metal)
  • Chuck Capacity 1.5mm - 13mm
  • Auto Spindle Lock
  • Drilling Capacity - 50mm Wood
  • Drilling Capacity - 13mm Metal
  • Drilling Capacity - 16mm Masonry
  • White LED Integral Worklight
  • 22 Position Torque Clutch Control
  • Supplied With Side Handle
  • Carry Case
  • 12 Month Warranty (Trade Use)

Summary Of This Dewalt Cordless Hammer Drill

The Dewalt DCD925 B2 can tackle most tasks the professional user will throw at it. By using the drills three speed gearbox it is capable of drilling into metal, wood, and timber with perfect control. Accurate screwdriving especially with large capacity wood screws is easy for this drill, helped by the 22 position torque control and variable speed trigger action. Removing screws and fasteners can be described as "childs play" when the reverse action is selected.

The busy tradesman will appreciate the speed with which drill bits or other accessories can be swapped using the standard keyless 13mm heavy duty chuck. The auto spindle lock fitted allows single handed use with this particular chuck.

This particular model cordless combination hammer drill is the not the cheapest you can buy, but it is a great all rounder offering strong performance over many other rival brands. A statement about Dewalt Power Tools is that they are guaranteed to be tough, powerful, precise, and reliable.

In addition ergonomics now play a big part with modern cordless drills. This also applies to this model with it having a good overall balance, a reasonable weight, and fitted rubber grips. These features increase comfort for the user w hen working for long periods of time with the Dewalt DCD925B2.

Wednesday, 13 January 2010

How To Maintain Dewalt Ni Cd Batteries

Maintaining Dewalt Ni Cad Rechargeable Batteries

It is important to take care of the rechargeable battery packs that are supplied with any new Dewalt cordless tool.

Depending on the type and particular model number of Dewalt tool you have purchased you will have as standard either one, two, or three rechargeable batteries.

The only exception to this is if you have bought one of their tools that are currently available as a "naked" unboxed unit. By unboxed this refers to the cordless tool being supplied with no batteries, charger, carry case, or kitbox, being supplied as a "bare" unit in just a cardbox type carton.

The Dewalt range of rechargeable batteries for their cordless power tools range in voltage from 7.2v to 36v. The most popular being the 12v nicad battery, 14.4v nicd battery, and the 18v ni cd battery.

Over the last few years these different voltage batteries have also been manufactured with new direct replacements which have greater capacities. For example the most popular battery in the Dewalt cordless range; the 18v De9095 NiCd battery (capacity which is 2.0 aH) can be directly interchanged with the new alternative DE9096 2.4 aH capacity battery. The difference in capacity does not give the relevant powertool any more power, but a longer running time on a full charge. Eg: If you own a Dewalt DC988KA 18v cordless drill with a 2.0 aH battery fitted you may achieve 100 to 120 holes drilled into hard timber before the battery runs out. With a 2.4aH De9096 replacement battery fitted you may achieve 150 to 170 holes.

Once you have bought a new Dewalt cordless tool it makes sense to get the most out of in it's lifetime, including the units rechargeable batteries.

How To Maintain Dewalt NiCad Rechargeable Batteries

The solution to keeping the battery on your Dewalt cordless tool well maintained is to use the tool regularly and by doing so "cycle" it's rechargeable nicad battery pack.

The first thing to undertake with any new nicad Dewalt Battery is to charge it completely the very first time when you buy it. After manufacture all new rechargeable batteries are shipped in a discharged state with very low charge and power in them. The battery must therefore be fully charged before it's first use.

Using the correct charger for your particular nicad dewalt battery (unless you own one of the intelligent chargers) the battery pack should be left in a charging state until the indicator light shows the period of time is complete. The battery should then be fitted to the required drill or other cordless tool and used as needed.

The next stage is to use the tool until the battery shows the first sign of having no power. On a cordless drill this would be when the motor and chuck slows down to a very low speed. It should not be used to the point where the chuck and motor does not rotate at all.

At this point is when the battery is at it's optimum state to receive a new full recharge.

Placing the flat discharged battery into the charger will allow the charger unit to measure the amount of current needed to top up each cell within the batteries housing, and start the charging process over again.

This is the best way to maintain all Dewalt Nicad Batteries and get a good service life from them.

Hints And Tips To Extend The Life Of The Tools Battery

As mentioned above the best way to keep a rechargeable battery pack working at it's peak is to "cycle" it by discharging and recharging on an ongoing basis or schedule.

Other help you can do to extend it's life is by way of:

1) Storing it when not used at a normal room temperature. This should be in not a cold or hot environment.

2) Avoid dropping the battery whether fitted to a power tool or not.

3) Not leaving the battery in a medium to full charge capacity. On nicad batteries this can lead to "memory effect".

4) If stored off the relevant power tool keep the battery metal contacts away from any other metallic objects.

5) Use only a recognised original equipment Dewalt Battery Charger.