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 B-1815-S 18V,2200mAh Battery Fit Ryobi Cordless CTH1802K,R1073K2 1400672 US $50.99 
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 Ryobi 12" Cordless Trimmer/Edger 18V US $35.00
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 Factory-reconditioned Ryobi ZRP824 One Plus 18V Cordless Starter US $60.00
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 ReNewing Battery Pack is Easy for RYOBI Cordless Drill 12v 14.4v 18v 24v VOLT US $14.44
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 Ryobi Cordless 18v Combo Kit Hardly Used US $110.00
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 RYOBI P208B 18V CORDLESS DRILL / DRIVER LITHIUM US $39.99
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 THREE Ryobi One+ P204 18v Cordless 1/2" Drill Drivers US $57.71
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 Ryobi P542 18V Li-Ion 10" Cordless Chainsaw New US $69.95
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 ryobi cordless circular saw 18 volt US $15.00
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 BRAND NEW... RYOBI 18v CORDLESS RADIO - P741 - MP3 SPEAKER - 18 volt v US $48.95
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 ryobi 18 volt cordless hand held vacuum US $5.00
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 Ryobi 18 Volt 18V Cordless Hand planer P610 Compatible w/ lithium Ion Or Nicad US $69.99
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 Ryobi 18 Volt 18V Cordless Circular Saw Model P501 & P104 Lithium Ion Battery US $109.99
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 Ryobi 18 Volt 18V Cordless Tool Two Battery P100 and Charger P115 Combo Set US $79.99
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 ryobi 18 volt cordless Reciprocating saw US $15.00
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 Ryobi SS180 - 18V Cordless Speed Saw Rotary Cutter Kit US $45.00
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 Ryobi 18 volt cordless stapler/nailer P300 ONE+ US $25.57
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 Ryobi P206 18V NiCd 1/2" Cordless Drill/Driver US $.99
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 Ryobi p204 18V 1/2" Cordless Drill/Driver US $19.99
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 Ryobi SA1802 18V 1/2" Cordless Drill/Driver GOOD USED US $18.99
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 NEW RYOBI 18 VOLT 18V CORDLESS STRING TRIMMER EDGER WEEDWACKER WEED WACKER P2000 US $39.99
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 RYOBI LITHIUM ION 18 VOLT 18V CORDLESS STRING TRIMMER EDGER WEEDWACKER P2002 US $32.00
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 NIB NEW RYOBI 18V 18 VOLT ONE+ CORDLESS ANGLE GRINDER 4.5" 4 1/2" US $49.50
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 NEW RYOBI 18 VOLT CORDLESS IMPACT DRIVER DRILL P234 JUST RELEASED! US $49.99
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 NEW RYOBI 18 VOLT 18V LITHIUM ONE+ CORDLESS COMPACT DRIVER DRILL P208B US $36.99
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 CORDLESS 18V RYOBI HEDGE TRIMMER (P2600A) AND CHAINSAW (P540A) - WORK GREAT! US $125.00
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 Ryobi 18 Volt 18V Cordless Circular Saw Model P501 Brand New US $10.99
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 RYOBI CORDLESS SAW /5-1/2 BLADE / 18V MODEL /# R10633 US $6.00
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 New 18v Ryobi P501 Cordless Circular Saw One+ use P100 P103 P104 battery US $10.99
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 Ryobi 18V 18 Volt Lithium Ion Cordless Tool Battery P103 US $27.51
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 Ryobi P2005 18 Volt 12" Cordless String Trimmer Edger New US $45.99
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 Ryobi One+ P501 18v Cordless Circular Saw NEW! US $9.75
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 Ryobi One+ P205 18v Cordless 2-Speed Drill NEW! US $9.75
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 Ryobi P506 18V 5-1/2" One+ Cordless Circular Saw New ~ Uses P100 P104 P103 P113 US $39.95
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 NEW Ryobi 18v 18 volt cordless drill driver P205 one plus (BARE) US $27.59
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 RYOBI ONE+ 18V 3/8" Cordless Drill - P205 US $21.99
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 RYOBI P501 18V 5-1/2" CORDLESS CIRCULAR SAW US $29.99
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 RYOBI 18V CORDLESS LEAF BLOWER P2102 LITHIUM NEW ONE+ US $67.99
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 Ryobi 18V 18 Volt Lithium Ion Cordless Tool Battery P103 New In Package "2Pk" US $89.99
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 EZ BATTERY FIX for Ryobi Cordless Drill 12 14.4 18 new US $7.95
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 RYOBI P540 CORDLESS CHAIN SAW 18V US $32.00
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 Ryobi 18-Volt ONE+ 1/2 in. Cordless Autoshift Drill US $55.00
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 RYOBI P850 OnePlus 18-Volt 1/2" Cordless Drill Kit US $69.99
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 RYOBI ONE+ 18V Cordless String Trimmer US $51.99
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 RYOBI P540 CORDLESS CHAIN SAW 18V W/ BATTERY & CHARGER US $100.00
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 Ryobi Tools Battery 18 volt light for cordless products US $20.43
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 Ryobi 18 Volt 18V Cordless Large Tool Bag Holds Drills Saws Accessories 2 Pack US $24.99
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 Ryobi 18 Volt 18V Lithium Ion or NiCd Cordless Impact Driver P231 "Brand New" US $49.99
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 RYOBI ONE+ 1/2" 18V Cordless Drill Kit US $119.00
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 6 VARIOUS RYOBI 18V&12V LITHION CORDLESS TOOL BATTERIES US $20.50
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 New in Box 18v RYOBI Cordless wet Tile Saw- Model # P580 for ALL TileTOOL ONLY US $40.00
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 New 18v Ryobi P501 Cordless Circular Saw & 17" tool bag use One+ P100 P103 P104 US $15.99
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 Ryobi One+ P204 18v Cordless 1/2" Drill Driver NEW! US $9.95
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 Ryobi P501 18v Cordless Circular Saw and Light!! US $19.99
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 Ryobi P204 18V 1/2" Cordless Drill/Driver US $19.99
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 RYOBI ONE PLUS LITHIUM ION 18 VOLT CORDLESS BLOWER + BATTERY + CHARGER trimmer US $132.00
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 RYOBI 18 VOLT CORDLESS CIRCULAR SAW WITH BATTERY US $29.99
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 RYOBI 18V Lithium cordless Battery ONE+ Ryobi Lithium Battery 18Volt - Free Ship US $32.00
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 2 Packs RYOBI 18V Lithium cordless Battery ONE+ Ryobi Lithium Battery 18Volt US $46.00
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 Ryobi P850 18V 1/2" Cordless Drill/Driver US $10.51
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 RYOBI 18v VOLT Cordless String Trimmer P2006 WEEDWACKER LITHIUM ION edger US $49.99
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 Ryobi 18 Volt 18V Cordless Tool Battery P100 and Charger P111 Combo Set US $46.99
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 Ryobi 18 Volt 18V Cordless Lithium Ion 2 Battery P103 and Charger P117 Combo Set US $129.99
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 Ryobi P260 Impact Wrench 18v One+ Lithium Ion (Tool Only) Bare Tool Cordless US $70.00
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 Ryobi One+18V. 4PC.Cordless Tool Kit P200,P501,P700,P400 ~NO RESERVE~ US $10.50
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 Ryobi SA1802 18V 1/2" Cordless Drill/Driver US $29.99
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 Ryobi P205 18V 3/8" Cordless Drill/Driver US $19.99
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 BATTERY DOCTOR for RYOBI ONE+ Cordless right angle drill driver grinder saw 18v US $12.34
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 RYOBI 18V CORDLESS 5 1/2 CIRCULAR SAW/trim R10633/18 V US $29.99
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 Ryobi 18-Volt Lithium Ion 1/2 in. Cordless Compact Drill Kit US $69.99
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 NIB Ryobi P205 18V 3/8" Cordless Drill/Driver Battery and Charger Combo P835 US $47.95
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 Ryobi 18V Reciprocating Saw P510 Sawzall One+Plus Recip Cut Cordless US $10.50
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 BRAND NEW! Ryobi P205 18V 3/8" Cordless Drill/Driver w/ 2 screw driver bits US $12.71
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 Ryobi 18V Cordless Power Tool Set w/ Extras US $66.00
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 RYOBI 18V LITHIUM ION CORDLESS DRILL & IMPACT DRIVER KIT P202 P234G W/(2) BATT. US $87.00
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 18V 2.0AH Ni-Cd Replacement Battery for Ryobi 18 Volt Cordless Drill Nailer Tool US $38.50
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 18V 1500mAh Drill Battery For 18V Ryobi Cordless 1322401 1322705 1323303 Ni-Cd US $47.99
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 18V 1500mAh Drill Battery For 18V Ryobi Cordless 1400672 1322705 1323303 Ni-Cd US $47.99
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 18V 1500mAh Drill Battery For 18V Ryobi Cordless 1400672 1322705 B-1815-S Ni-Cd US $47.99
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 18V 18 volt Drill Battery For Ryobi Cordless 130224007 130256001 B-1815-S Ni-Cd US $47.99
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 18V 18 volt Drill Battery For Ryobi Cordless 1322401 1323303 1322705 1.5Ah Ni-Cd US $47.99
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 18V 18 volt Drill Battery For Ryobi Cordless 1322705 1323303 1400672 1.5Ah Ni-Cd US $47.99
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 18V 18 volt Drill Battery For Ryobi Cordless 1322401 1323303 1400672 1.5Ah Ni-Cd US $47.99
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 18V 1500mAh Drill Battery For Ryobi Cordless 130224007 130256001 B-1815-S Ni-Cd US $47.99
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 18V Ni-cd 1700mAh Battery For 18V Ryobi 1322401 1322705 1323303 Cordless US $51.99
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 18V 18 volt Ni-cd 1700mAh Battery For 18V Ryobi 1322401 1322705 1323303 Cordless US $51.99
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 Ryobi R10631 Cordless Circular Saw 18v US $14.43
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 NEW 18V Ryobi Cordless 1/2" Drill/Driver P202 US $34.99
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Ryobi 18 Cordless
Ryobi replacement battery
By understanding the advantages and disadvantages of each kind of battery, maintenance and engineering managers can more effectively specify tools that best fit their departments' needs.
Power Options
Nickel cadmium (NiCad), nickel metal hydride (NiMH) and lithium ion (Li-Ion) are the three main types of batteries for cordless power tools today. Each one has unique characteristics.
NiCad batteries — currently the most commonly used type of dewalt battery — have been around the longest, are the least expensive, and are known for their high durability. Many manufacturers, however, believe newer battery chemistries offer greater potential in improving user productivity.
"NiCad has pretty much reached its peak, and now we're seeing more and more innovations in battery technology," says Kevin Fairchild, Hitachi Power Tools' senior product manager for electric power tools.
Managers should consider a battery's service life when specifying tools. To determine its service life, users need to look at its run time and life cycle. Run time is the amount of work a tool can perform from one charge. Life cycle is the number of times a user can recharge a battery. As the battery reaches the end of its service life, users often notice a decline in run time.
"End users often say one of their biggest frustrations is needing to buy new battery packs too often," says Jeff Wilkison, director of product marketing for cordless tools at Bosch Power Tools. This can be particularly true for NiMH batteries, which generally have less life cycles than NiCad batteries.
"One of the disadvantages of nickel metal hydride is that they accept slightly fewer charges than a NiCad battery," Wilkison says.
Milwaukee Electric Tool's V28 line of power tools featuring Li-Ion batteries, unveiled last January, provides users with more run time than NiCad or NiMH batteries, Sara says.
"Individuals currently using a 18-volt NiCad battery, should see 2 - 2-1/2 times more work output from a V28," says John Sara, cordless product manager for Milwaukee Electric Tool.
A battery's amp-hour rating also helps end users determine its service life, Hi-tachi's Fairchild says.
"People often just look at look volts when they should really concentrate on the battery's amp-hour rating," he says. While the volts relate to the tool's power, they don't indicate how long the battery will last. The higher the amp-hour rating, the longer the tool will run, he says.
Eighteen-volt batteries often have different amp hours, Fairchild says.
"In fact, it is very hard to find two 18-volt drills that have the same amp-hour rating," he says. "The batteries will be the same size and look similar, but users will get more run time from a three-amp-hour battery than a two-amp-hour battery."
Shrinking in Size
Along with longer run times and service lives, tool users continue to seek smaller, lighter-weight cordless tools that are easier to maneuver and carry. To meet this demand, tool manufacturers are focusing on ways to reduce the size and weight of the batteries that power these tools.
The size of a battery's cells determines the size of the battery pack. The cells in a NiCad battery are larger than those in a NiMH battery, so an 18-volt NiCad battery is bigger and weighs more than an 18-volt NiMH battery.
"People are okay with the weight of an 18-volt NiCad battery, but anything more than that is really fatiguing," Sara says, adding that 18-volt NiCad battery packs weigh about 2.4 pounds. Because 24-volt NiCad battery packs weigh more — about 3.3 pounds — they haven't made a significant impact on the tool market.
The V28 pack weighs 2.3 pounds, Sara says. Thanks to Li-Ion's chemistry, this line of power tools provides users with additional run time and power without the weight increase, he says.
Temperature Tolerance
One characteristic of NiCad batteries that makes them popular is their ability to perform in cold temperatures. According to Sara, NiCad batteries begin to lose their run time at temperatures below 20 degrees.
Of the three battery chemistries, NiMH performs the worst in cold temperatures according to some manufacturers.
"In our testing of NiMH batteries, we found that the cold-weather performance isn't there," Sara says. "They lose their run time in freezing temperatures. Because professionals are often working outside or the tools are stored in a cold truck, this is an unacceptable performance trade off."
Sara says Li-Ion batteries have the best performance in cold weather, maintaining most of their run time down to about 0 degrees.
Although cold temperatures can hamper a battery's performance, excessive heat can irreversibly damage a battery(cordless drill batteries). While manufacturers discourage users to store tools in hot environments, heat-related problems are more likely to occur while the tool is in use.
"Heat destroys the cells," Wilkison says. "One of the most important things that power tool companies need to do is understand how to manage the heat that the battery cells generate.
"All of the cells are linked together, so a battery is only as good as its weakest cell. If one cell gets too deeply discharged versus the others, cell damage can occur."
Says Fairchild, "The less heat the battery produces, the longer it is going to last. That is why many cordless tools feature heavy-duty fans to cool the motor and armature.
"Because nickel metal hydride batteries produce so much heat, we install fans in the chargers so they don't overheat," he says. "As they are charging and heating up, they're actually cooling off."
Lithium-ion Circuits
One unique feature of Li-Ion battery packs is their protection circuits. These circuits extend battery life by maintaining cell balance when in use and recharging, providing added battery pack life, Sara says. "The electronics make sure all the cells work together as a team and that one isn't pushed harder than the others."
The electronics also ensure that the cells receive the same amount of power when recharging.
"The reason lithium-ion batteries have a protection circuit is actually the downfall of lithium-ion," Wilkison says. NiCad and NiMH power tools do not require a computer circuit to manage the heat. With these types of batteries, design engineers can control heat in other ways, such as through tool design.
"The purpose of the electronic circuitry is to limit the amount of power that goes from the battery to the motor," he says. "It's not an added feature but a requirement to be able to use those tools. It protects users from severely damaging the battery and making it inoperable in just one or two uses."
If tool manufacturers could produce a lithium-ion cordless tool without the protection circuit, they would, he says, because adding it increases manufacturing costs.
Memory Effect
According to some tool manufacturers, NiCad batteries suffer from memory effect. This happens when a battery is continually only partially discharged before recharging. The battery "forgets" that it has the capacity to further discharge all the way down.
About 95 percent of NiCad batteries have memory effect problems, Fairchild says.
Other manufacturers disagree, saying that memory effect is no longer an issue regarding power tool batteries.
"One of the biggest myths out there is that everyone thinks that batteries have a memory effect stolen," Sara says. "This is no longer the case. There is no memory effect for professional grade power tool batteries." He adds that recharging partially discharged Milwaukee Electric Tool batteries will not damage their capacity.
The professional grade tools that use NiCad batteries make up a small portion of the cordless power tool market, Fairchild says. "About 15 percent of the market is upper-end tools and about half of those tools that use NiCad batteries don't suffer from memory effect," he says.
Because of memory effect concerns, end users might try to fully discharge a battery on purpose before recharging it. Wilkison says users should never deeply discharge a battery on purpose, because doing so can severely damage the pack.
"Users should recharge the battery whenever there isn't enough power to do the job," Sara says. To ensure a full charge for every job, end users should charge batteries after every use, he says. This practice does not damage the battery, no matter its chemistry.
dewalt battery
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