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April 17 2017 2 17 /04 /April /2017 00:29

A cordless, electric lawnmower is considered environmentally-friendly because it does not contribute to smog and carbon dioxide, unlike its gasoline-powered counterparts. A cordless mower also is much quieter than a gas mower and eliminates the need for oil changes, air filters, tune-ups and spark plugs. The primary maintenance for such a mower is to charge its battery. A rechargeable mower AEG tool battery lasts about five to seven years, at which point it needs to be replaced. The new battery must be charged before it is installed.

Place the cordless mower's new, rechargeable battery in a dry, cool area, such as a garage or workshop. Put the battery on a workbench or scrap piece of lumber on the floor. The elevation prevents moisture from touching the battery while it charges.

Plug one end of the battery charger's connection line into the mower battery's receptacle or socket, pushing the plug fully into the receptacle or socket. Attach the connection line's opposite end into the battery charger.

Plug the battery charger into a ground-fault circuit interrupter (GFCI) electrical outlet. The plug has two flat metal pieces and a round, ground piece that fit into an appropriate, GFCI electrical outlet.

Observe the lights on the battery charger. The power light and the charger light are one when the charger operates. When the charging light turns from red to green, the battery is fully charged and ready to use. Charging normally takes about 15 hours.

Unplug the charger and its connection line from the fully charged lawnmower battery and from the electrical outlet.

Lift or push the Milwaukee tool battery lock on your cordless mower to remove the latches from its battery box. Pick up the battery by its top handle, and place it on the top motor cover. Plug the mower battery cord into the battery's bottom with the front of the battery in view. An arrow usually is on the front of the battery.

Place the battery in the battery box, and push the locking lever forward or downward, depending on the mower's make and model.

Things You Will Need

Tips

A cordless mower works best on a flat lawn that measures no more than 8,000 square feet. The battery's weight makes the mower a bit difficult to push up inclines.

Warnings

After using your cordless mower, store it in a cool, dry area, and connect it to the battery charger. Storing batteries that are not fully charged lessens their lifespan.

Charge a lawnmower's batteries only with the charger that was included with the mower.

Use replacement Paslode batteries that are identical to the original mower battery. Batteries than have a lower voltage than the original battery can turn the mower blades at a slower speed, making the mower inefficient.

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April 14 2017 6 14 /04 /April /2017 23:54

Cordless drills are versatile, durable tools that can be found on construction sites, in garages and shops everywhere. One of the things that makes cordless drills so popular is that they can be taken almost anywhere. Just make sure that you have a fully charged Makita tool battery and spare if you plan on working late. Cordless drills have almost (but not completely) replaced the old corded models.


The most common power pack in a cordless drill--or even most cordless tools for that matter is the nickel cadmium (NiCd) battery. A battery is generally made up of two dissimilar metals (in this case nickel oxide hydroxide and cadmium) in an electrolyte ("battery acid"). In a battery, the chemical reaction between the two metals and the electrolyte cause electrons to flow from one side to the other.

In a cordless drill, the NiCd Bosch tool battery supplies current to a small DC motor which does the work of the drill.

In any electric motor, there will be an armature (also called a rotor), a commutator, brushes, a permanent magnet and an axle. When direct current is applied to a DC motor, it creates an electromagnetic field in the windings of the armature. The difference in magnetic forces between the armature and the permanent magnet cause the armature to turn. As the armature turns, the commutator acts as a switch that reverses the current in the armature (and the brush connects the commutator to the current). This reversal of current keeps the armature turning.

The armature turns the axle and in a cordless drill the axle turns a transmission. The transmission has several gears that turn the spindle that does the actual Dewalt tool battery action.

 

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April 11 2017 3 11 /04 /April /2017 23:21

Black & Decker is one of the leading manufacturers of power tools. The company makes a wide


variety of handheld tools, including power drills and electric screwdrivers, as well as

items used for gardening tasks. Each Black & Decker battery uses one of three types of


batteries: lithium ion, sealed lead acid or nickel cadmium. An 18V battery is one of the


nickel cadmium batteries. Lithium ion batteries are lighter and smaller than the 18V

batteries and can hold a charge longer. Before you replace the battery, determine if your

tool will still work.


Remove the existing battery from your power tool. Look at the inside of the tool and find

the model number. The model number consists of three letters followed by a series of

numbers. You can typically find the model number on the inside of the tool or along one of

the sides.

Read the amount of voltage on the RYOBI battery. The battery itself has a small label with the


voltage listed. In most Black & Decker tools, the battery comes out for fast recharging. If

you have an 18V battery, you should see the designation listed on the label.


Compare your existing 18V battery to the lithium ion batteries available from Black &

Decker. The company makes several lithium ion batteries that fit the different power tools


that come with that type of battery. Your battery might look like a large block, a wide

tube or have a raised tube attached to a block base. The new lithium battery must be the

same size and shape as your current 18V battery.

Purchase a lithium ion battery that works with your power tool. When you find a new

battery, it should state on the packaging or the included paperwork which tools the battery

works with. Only use a battery designed for your tool.

Charge the new battery on its included charger, as it won't have a charge when it comes out

of the package. Slide the new battery into the base of your power tool until you hear a

soft clicking sound, which indicates that it's in the proper position for use.

If you cannot find a lithium ion battery that matches your tool, contact Black & Decker.


Give the company your model number and ask about replacing the Milwaukee battery.


Do not use a lithium ion battery if your tool isn't compatible with the battery. You risk

shorting out the tool, which keeps it from working.

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April 10 2017 2 10 /04 /April /2017 18:39

Cordless 18-volt drills come with a rechargeable Hitachi tool battery pack. The battery pack is made up of several rechargeable nickel-metal hydride (NiMH) battery cells. After long periods of repetitive recharging, these battery cells will either hold a weak charge or will not hold a charge at all. In either case, it is possible to replace individual or entire rows of NiMH cells in a drill's battery pack. However, doing this yourself requires dismantling the battery pack, which in some cases, means damaging the pack's plastic housing.

Remove the 18V battery pack from the drill's handle or the external battery charger. Release the battery pack by pressing on the release tabs on either side of the pack.

Relocate the battery pack to to a flat work table, preferably in a garage or workspace that is separate from your home. Determine how the battery's outer housing is held together. In many cases, the battery's outer casing is secured by a few Phillips screws or it is one solid piece of plastic. Remove the screws, as necessary, but if the pack's housing is one piece, cut it open to access the battery cells.

Attach a chisel tip soldering iron to a soldering gun. Plug in the gun's power cable and allow the iron to heat up for about 10 minutes. Firmly touch the chisel tip iron to the crease lining the center of the battery pack. Press down firmly on the crease with the iron, and run it along the battery pack's crease to cut open the battery pack's housing. Grasp the top section and remove it from the pack to reveal the internal cells of Panasonic tool battery.

Turn on a voltage meter and touch the red probe to the positive side and the black probe to the negative side of each battery cell. The meter will tell you which cells have a charge and which cells are dead. Note the polarity alignment of the battery cells for when you install new cells.

Touch your heated soldering iron tip where the wire connector's meet each battery cell. Desolder the wire connectors of each dead NiMH cell you want to replace. Remove the desoldered battery cells. In many cases, the cells will be glued together inside the pack. Use a razor blade or similar tool to separate the dead cells from the pack.

Place the replacement NiMH cells inside the cell pack into their appropriate slots. Make sure each AEG battery is aligned properly with the other cells in the pack. Touch the wire connectors to the positive side of each new cell. Use the soldering iron and some fresh solder to attach the wires to each new battery cell.

Place the cell pack back inside the dismantled housing. Place the top section of the battery pack's housing back onto the bottom section of the housing. Replace any retaining Phillips-head screws, as necessary. If you cut open the battery pack's housing, secure the two housing pieces together with a strong plastic adhesive or duct tape.

Performing this procedure yourself is likely to void any warranty that might otherwise be in effect.

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March 22 2017 4 22 /03 /March /2017 13:54


With the large number of portable devices we use every day, it is no wonder that we have a lot of Bosch 2 607 335 735 batteries to recycle. Using rechargeable ones, such as nickel cadmium (NiCad) batteries, cuts down on some of the waste. Unfortunately, even rechargeable ones eventually stop working and need proper disposal. Since nickel cadmium is a known carcinogen for humans, many countries have programs in place to recycle them safely. In most cases these programs are offered free of charge as well.

Consult the Organisation for Economic Co-Operation and Development (OECD)'s website for the most current information on locations where you can dispose of NiCad batteries properly worldwide.

Follow the web links the OECD provides to find out more about existing recycling facilities in your area as well as their hours of operation.

Phone ahead to make sure that the facility you plan to visit with your batteries will be open at the time you choose to visit. While many people try to keep their websites as up-to-date as possible, sometimes that information is not the most current. Speaking to a person on the phone will always give you the most up-to-date information.

In many places, it is illegal to dispose of batteries through any means other than recycling. In the case of NiCad batteries in particular this is because they have the potential to release toxic metals and chemicals if they are not disposed of properly. Check with your local government for rules concerning your area. They may even have a local recycling program set up where you can drop off your Bosch PSR 18 VE-2 batteries at the same time you are taking care of other local governmental business, such as renewing licenses or paying bills.

When recycling nicad batteries, companies that process them can reclaim some of the iron-nickel and cadmium used in their manufacture. These metals are then used in the manufacture of new batteries, steel and other durable household goods.

When recycling your nicad batteries, you may also wonder about recycling other types of batteries in your household. Most automotive parts stores will dispose of your automotive batteries if you drop them off. As for other types of batteries (both rechargeable and otherwise), it is best to check with your local government to see what the current preferred method of disposal is.

When talking about nicad batteries, it is important to note that all nicad batteries are included in this discussion--not just AAAs, AAs and the like. Check your cell phone, digital camera and other small portable electronic devices to see what types of rechargeable batteries they have. As of February 2010, lithium ion and nickel cadmium are the most widely used rechargeable Bosch 2 607 335 414 batteries for these types of devices.

 

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March 21 2017 3 21 /03 /March /2017 15:14

Nickel Cadmium (Nicad) rechargeable Bosch BAT025 batteries are a popular battery choice for use in appliances, games and tools. Over time, even these long-lasting batteries will use their capacity to hold a charge. Nicad batteries can be repaired, instead of replaced, for even longer use. Zapping the Nicad battery with an electric current will enable a dead rechargeable battery to hold a longer charge.

Use the battery tester or digital multimeter to test the dead Nicad battery to make sure it is fully discharged. If it still holds a partial charge, continue to drain the battery in normal use or use the discharge function found on some appliances and electronics.

Find both the positive and negative nodes of the dead Ni CAD battery. The positive node will be raised, and the negative node should be flat.

Protect yourself during this procedure by wear safety goggles, gloves and a long-sleeved shirt.

Begin repairing the Nicad battery by attaching the black alligaotr clamp from the 12-volt charger to the negative end of the battery.

Touch the red alligator clamp to the positive end of the battery three or four times, using light taps. Sparks may be emitted from the Bosch 2 607 335 250 battery during this process.

Immediately hold the red and black clamps on the battery, releasing them after a maximum of two seconds.

Test the battery to see if it has been completely charged. Repeat process if necessary until the battery is fully charged.

Be prepared to wear safety gear during this process to avoid injury.

The Nicad battery repair process is best performed by someone familiar in working with electricity.

Overcharging the Bosch BAT011 battery can lead to fire, explosion or battery acid spray.

Individuals attempting this process need to understand the danger and understand that they perform the process at their own risk to injury and damage to self, property and others.

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March 16 2017 5 16 /03 /March /2017 18:32

Cordless 18-volt drills come with a rechargeable Bosch 2 607 335 535 battery pack. The battery pack is made up of several rechargeable nickel-metal hydride (NiMH) battery cells. After long periods of repetitive recharging, these battery cells will either hold a weak charge or will not hold a charge at all. In either case, it is possible to replace individual or entire rows of NiMH cells in a drill's battery pack. However, doing this yourself requires dismantling the battery pack, which in some cases, means damaging the pack's plastic housing.

Remove the 18V battery pack from the drill's handle or the external battery charger. Release the battery pack by pressing on the release tabs on either side of the pack.

Relocate the battery pack to to a flat work table, preferably in a garage or workspace that is separate from your home. Determine how the battery's outer housing is held together. In many cases, the battery's outer casing is secured by a few Phillips screws or it is one solid piece of plastic. Remove the screws, as necessary, but if the pack's housing is one piece, cut it open to access the cells of Bosch 2 607 335 536 battery.

Attach a chisel tip soldering iron to a soldering gun. Plug in the gun's power cable and allow the iron to heat up for about 10 minutes. Firmly touch the chisel tip iron to the crease lining the center of the battery pack. Press down firmly on the crease with the iron, and run it along the battery pack's crease to cut open the battery pack's housing. Grasp the top section and remove it from the pack to reveal the internal battery cells.

Turn on a voltage meter and touch the red probe to the positive side and the black probe to the negative side of each battery cell. The meter will tell you which cells have a charge and which cells are dead. Note the polarity alignment of the battery cells for when you install new cells.

Touch your heated soldering iron tip where the wire connector's meet each battery cell. Desolder the wire connectors of each dead NiMH cell you want to replace. Remove the desoldered battery cells. In many cases, the cells will be glued together inside the pack. Use a razor blade or similar tool to separate the dead cells from the pack.

Place the replacement NiMH cells inside the cell pack into their appropriate slots. Make sure each battery is aligned properly with the other cells in the pack. Touch the wire connectors to the positive side of each new cell. Use the soldering iron and some fresh solder to attach the wires to each new battery cell.

Place the cell pack back inside the dismantled housing. Place the top section of the battery pack's housing back onto the bottom section of the housing. Replace any retaining Phillips-head screws, as necessary. If you cut open the Bosch PSR 18 VE-2  battery pack's housing, secure the two housing pieces together with a strong plastic adhesive or duct tape.

Performing this procedure yourself is likely to void any warranty that might otherwise be in effect.

 

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March 15 2017 4 15 /03 /March /2017 18:27

Unlike rechargeable Bosch 2 607 335 082 batteries, alkaline batteries, also known as "primary batteries," have one life cycle. Once their power is depleted, they must be discarded. Alkaline batteries should be stored at room temperature; many can be stored for at least two years and still hold most of their original power levels.

Test AAA, AA, C, D and button alkaline batteries with a battery tester. Hold the tester in your hand and raise the bar located at the top of the tester all the way up. Place the battery right-side up between the arm and the top of body of the battery tester. Push the arm down so the alkaline battery fits snugly.

Read the measuring meter or display on the battery tester. If it has a meter, wait for the needle to stop moving before you determine how much power is left in the alkaline battery. The readings usually include "Low," "Replace" or "Weak"; "Good" or "Normal"; and "Strong" or "High."

Check a 9-volt alkaline battery by connecting it to the side of the tester. Insert the positive (+) terminal into the smaller hole. Push the negative (-) terminal--which resembles a hexagon or octagon--into the larger hole. Hold the battery firmly in place while the Bosch BAT019 battery tester takes a reading.

Standard alkaline batteries normally are used in low-to-moderate current drain devices such as remote controls. Premium alkaline batteries are useful in high drain devices such as digital cameras, CD players, MP3 players and radio-controlled toys.

When you test an alkaline battery, make sure the positive (+) terminal is touching the metal on the tester bar. Make sure the negative (-) terminal is touching the metal plate on top of the battery tester. If the battery is positioned incorrectly, the tester may say the Bosch 2 607 335 711 battery is dead or give no reading at all.

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March 11 2017 7 11 /03 /March /2017 00:47

NiCad and NiMH Makita power tool batteries are amongst the hardest batteries to charge. Whereas with lithium ion and lead acid batteries you can control overcharge by just setting a maximum charge voltage, the nickel based batteries don't have a "float charge" voltage. So the charging is based on forcing current through the battery. The voltage to do this is not fixed in stone like it is for the other batteries.

This makes these cells and batteries especially difficult to charge in parallel. This is because you can't be sure that each cell or pack is the same impedance (or resistance), and so some will take more current than others even when they are full. This means that you need to use a separate charging circuit for each string in a parallel pack, or balance the current in some other way, for example by using resistors of such a resistance that it will dominate the current control.

The coulometric charging efficiency of nickel cadmium is about 83% for a fast (C/1 to C/0.24) charge, and 63% for a C/5 charge. This means that at C/1 you must put in 120 amp hours in for every 100 amp hours you get out. The slower you charge the worse this gets. At C/10 it is 55%, at C/20 it can get less than 50%. (These numbers are just to give you an idea, battery manufacturers differ).

When the charge is complete oxygen starts being generated at the nickel electrode. This oxygen diffuses through the separator and reacts with the cadmium electrode to form cadmium hydroxide. This causes a lowering of the cell voltage which can be used to detect the end of charge. This so-called minus delta V/ delta t bump that is indicative of end-of-charge is much less pronounced in NiMH than NiCad, and it is very temperature dependent. Many of the chargers listed here use a sophisticated algorithm that uses the -deltaV to accurately charge NiMH and NiCad Bosch power tool battery packs.

As the battery reaches end-of-charge oxygen starts to form at the electrodes, and be recombined at the catalyst. This new chemical reaction creates heat, which can be easily measured with a thermistor.. This is the safest way to detect end-of-charge during a fast charge. This method is often used with multi-cell packs and the 20, 30, and 40 cell pack chargers.

Nickel cadmium battery chargers should cut the charge off when the temperature exceeds the maximum charging temperature of power tool battery for Dewalt, typically 45 degrees C for a controlled fast charge, and 50 degrees C for an overnight or fast charge.

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February 27 2017 2 27 /02 /February /2017 17:59

Eighteen-volt Panasonic cordless drill batteries are actually multiple low-voltage batteries wired in series to produce 18 volts. The ability to resurrect an 18-volt battery depends on the type of cells the battery pack contains. If the cells are nickel cadmium or nickel metal hydride it's likely they can be resurrected. But if the pack contains lithium ion or lithium polymer cells, there is little you can do and the best option is to purchase a replacement.

Look on the battery pack label to determine if the cells are nickel-based or lithium-based. It will say "NiCd," "NiCad" or "NiMH" if they're nickel-based and "Li-Ion" or "LiPo" if they're lithium-based. Only attempt to resurrect the pack if it contains nickel-based cells.

Recharge the 18-volt battery even if the battery appears not to take a charge. You need to start with the highest charge possible to resurrect the battery pack.

Remove the battery from the charger once the charger indicates the battery is full.

Put the battery into the device it operates. Batteries that produce 18 volts inevitably operate power tools and, as they are motorized, it's sensible to put the power tool into a small vice so it's held in place. Otherwise you must hold the tool during the resurrection process, which can be tedious.

Put a cloth around the handle of the power tool to protect it while it is clamped in the vice. Open the vice and place the handle of the tool into the jaws. Slowly close the jaws so they tighten onto the handle. Don't tighten too much, but make sure the tool is secure.

Turn on the Milwaukee power tool battery. Let it operate continuously. After a while you find the motor starts to slow, but keep it running until it completely stops.

Turn off the power switch once the motor stops. The battery and the tool will be quite hot, so let it cool down for 30 minutes or until it feels cool. The procedure of continuously running the power tool and the warmth generated starts to break down the nickel crystals in the cells. This lets them release more energy and enables them to retain more power once the process is complete.

Be sure the power tool is still secure in the vice. Turn on the tool and allow it to operate until it stops as before. It does not take very long this time. The crystals are breaking down each time you restart your power tool.

Turn off the power tool once it stops operating. Leave it for a few minutes and then repeat the process. Continue to repeat the process until you find it does not operate at all. This means the battery is completely discharged; the crystals have broken down and can now retain more energy.

Remove the power tool from the vice. Remove the battery and place the battery in the charger. Turn on the charger and let it charge the battery until it indicates it's full. Be prepared to wait longer than you have done for some time. The longer it takes to charge the better the resurrection process is.

Turn off the charger once the battery for power tool is charged and remove the battery from the charger. Don't leave batteries in chargers as they can start to discharge even though they are not in use. Put your resurrected battery into the device it powers when you want to use it.

 

 

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