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2. DeWalt - Wikipedia

   en.wikipedia.org/wiki/DeWalt

   On September 1, 2016, DeWalt debuted its FlexVolt hybrid voltage battery pack that can switch between series battery wiring providing 60 V (54 V nominal) and 2 Ah, or parallel wiring for 20 V (18 V nominal) and 6 Ah, depending on whether it is installed in a 60 V or 20 V tool, determined by communication between the tool and battery. [10 ...

3. Lithium-ion battery - Wikipedia

   en.wikipedia.org/wiki/Lithium-ion_battery

   A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.

4. There Are Plenty of Great Tools on Sale for Labor Day — Shop ...

   www.aol.com/plenty-great-tools-sale-labor...

   Cordless Jigsaw with 18V Lithium-Ion 4.0 Ah Battery and Charger Kit. $124.94. ... It also features DeWalt’s new battery design with a molded rubber bottom for a non-marring, slip-resistant base ...

5. 17+ best Home Depot Labor Day deals - AOL

   www.aol.com/news/17-best-home-depot-labor...

   Ryobi 18V ONE+ Lithium Starter Kit $158.00 at Home Depot This bundle includes an 18V ONE+ Cordless Multi-Tool, 18V ONE+ 4.0 Ah Battery, 2.0 Ah Battery and a charger.

6. Battery balancing - Wikipedia

   en.wikipedia.org/wiki/Battery_balancing

   Battery balancing and battery redistribution refer to techniques that improve the available capacity of a battery pack with multiple cells (usually in series) and increase each cell's longevity. [1] A battery balancer or battery regulator is an electrical device in a battery pack that performs battery balancing. [ 2 ]

7. History of the lithium-ion battery - Wikipedia

   en.wikipedia.org/wiki/History_of_the_lithium-ion...

   1973: Adam Heller proposed the lithium thionyl chloride battery, still used in implanted medical devices and in defense systems where a greater than 20-year shelf life, high energy density, and/or tolerance for extreme operating temperatures are required. [ 13 ] However, this battery employs unsafe lithium metal and was not rechargeable.