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 Black & Decker 18V 18 Volt R Cordless Hard Surface Sweeper Leaf Blower BareTool US $24.99 
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 REMINGTON 18 Volt Cordless Leaf Blower Sweeper Model RM170B NIB US $66.99
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 Black & Decker Cordless 20V Lithium 20 Volt Leaf Blower Cordless LSW120 US $29.58
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 Black & And Decker 18V 18 Volt 18 V Cordless Sweeper Leaf Blower BareTool US $29.90
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 Black & and Decker 20v 20 volt LSW120 R Lithium Cordless Leaf Blower BareTool US $39.99
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 Black & And Decker 18V 18 Volt 18 V Cordless Sweeper Leaf Blower BareTool NICE US $29.99
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 Black & Decker 18V 18 Volt R Cordless Hard Surface Sweeper Leaf Blower Bare Tool US $24.99
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 WORX 20 Volt Max Lithium Cordless Sweeper Blower Battery Operated Yard Leaf Dirt US $137.77
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 RYOBI 18V 18 VOLT CORDLESS LITHIUM ION LEAF BLOWER P2102 US $34.99
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 Craftmans Cordless 19.2 volt 140 MPH Leaf Blower includes battery & Charger NWOB US $59.99
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 Earthwise 18 Volt Cordless Leaf Blower US $89.99
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 Earthwise CB20018 18V 18 Volt Cordless Leaf Grass Weed Blower Eco Friendly New US $92.05
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 Turbo Garden Products Cordless 24 volt Leaf Blower US $59.99
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 NEW IN BOX WORX Air WG541 18-Volt Cordless Leaf Blower FAST FREE SHIPPING US $99.95
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 Earthwise CB20018 18-Volt Cordless Leaf Blower NEW US $94.99
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 Makita 18 Volt Lithium Ion Cordless Blower Yard Leaf US $99.99
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 Sun Joe 18-Volt Lithium-Ion Cordless String Trimmer and Leaf Blower Combo Kit US $169.68
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 WORX 18 VOLT CORDLESS LEAF DEBRIS AIR BLOWER WG541 NEW US $99.99
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 BLACK & DECKER 18V 18 VOLT NS118 CORDLESS BROOM / LEAF BLOWER US $28.95
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 Handheld Electric Leaf Air Blower - Cordless 20 Volt Yard Garden Leaves Clear US $59.99
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 Sun Joe LISJ2221 18-Volt Lithium-Ion Cordless String Trimmer and Leaf Blower Co US $193.28
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 Earthwise CB20018 18 Volt Cordless Handheld Leaf Blower US $69.95
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 Ryobi Cordless 18V String Trimmer & Leaf Blower - 18 volts US $169.99
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 Earthwise CB20018 18-Volt Cordless Leaf Blower w/ 2 YR WARRANTY US $79.95
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 BLACK & DECKER 18V 18 VOLT CORDLESS BROOM / LEAF BLOWER NS118 US $37.50
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 RYOBI P2102 18 VOLT 18V CORDLESS LITHIUM ION LEAF BLOWER, TOOL ONLY US $39.95
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 NEW 18-Volt Cordless Electric Broom Leaf Blower Sweeper *QUICK SHIP* US $131.00
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 Earthwise CB20018 18V 18 Volt Cordless Leaf Grass Weed Blower - Eco Friendly US $91.60
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 WORX 18-Volt Cordless Leaf Blower/Sweeper 120 mph ~NEW US $107.99
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 BLACK & DECKER 20V 20 VOLT LSW120 LITHIUM-ION CORDLESS BROOM LEAF BLOWER US $52.95
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Volt Cordless Leaf
Get the battery charge on
The pop myth is that National Aeronautics and Space Administration highly-developed the 1st power tools so cosmonauts could cast free, drilling samples of the moon's surface.
But even National Aeronautics and Space Administration says they were invented by Black & Decker in 1961. Three years later, a minimum-torque wrench flew on Gemini missions. In 1968, a core-sample drill went to the moon on Apollo missions. There were no power cords to tangle, and even in zero gravity the tools dug holes and turned bolts rather than turn the astronauts.
Here on Earth, you'll feel the torque in your articulatio radiocarpea as a drill turns. Eliminating that is a costly piece of engineering still reserved for space. But fifty years later, power tool batteries pack a lot more power — for drills,
circular saws, wrenches, leaf blowers, chain saws — and for many jobs around the house, way more than you need.
Increasing power
The beginning power tools were powered by self-contained nickel-cadmium cells. They were heavier and bulkier than corded tools, had much less power, limited run time and extensive recharge time. But, maybe as the novelty if not the cordless convenience, people bought them anyway. In the 1980s 9.6-V tools showed improvement. In the 90s, as manufacturers raced to have the most powerful tools on the market, there were 12- and 14-volt systems. That's the low end of battery packs available on most full-size power tools today.
Capacity has climbed with efficiency improvements mainly from 2 sources: ni-cd batteries (ni-cad) and the more recent li-ion batteries (li-ion).
To save the weight and bulk in check, several companies offering ni-cad tool lines concentrate on 18-volts. Others carry ni-cads at 24-volts. Li-ion models have surged ahead, and several manufacturers at once offer li-ion tool lines with 28-volt power.
Comparisons
Among the biggest differences between the two battery types is in memory effect, a common problem with laptop and mobile phone, too. For example, by recharging before the dewalt battery is depleted, and repeating a recharge approach pattern, the battery basically loses track of its upper and lower limits, and capacity plummets. Nickel-cadmium battery can also lose strength to what's called lazy battery effect — speedily discharging power when disconnected — a problem due to repeated overcharging.
These issues are resolved by li-ion batteries. They have no memory effect.
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