enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Nickel–metal hydride battery - Wikipedia

   en.wikipedia.org/wiki/Nickel–metal_hydride_battery

   The cost of lithium batteries fell drastically during the 2010s and many small consumer devices now have non-consumer-replaceable lithium batteries as a result. Lithium batteries produce a higher voltage (3.2–3.7 V nominal), and are thus not a drop-in replacement for AA (alkaline or NiMh) batteries without circuitry to reduce voltage.

3. Nickel–iron battery - Wikipedia

   en.wikipedia.org/wiki/Nickel–iron_battery

   Edison's batteries had a significantly higher energy density than the lead–acid batteries in use at the time, and could be charged in half the time; however, they performed poorly at low temperatures, and were more expensive. Jungner's work was largely unknown in the US until the 1940s, when nickel–cadmium batteries went into production there.

4. B&M - Wikipedia

   en.wikipedia.org/wiki/B&M

   B&M Retail Limited, trading as B&M, is a British multinational variety store and garden centre chain founded in 1978 and based in Speke. It is listed on the London Stock Exchange , and is a constituent of the FTSE 250 Index .

5. Supercapacitor - Wikipedia

   en.wikipedia.org/wiki/Supercapacitor

   The electrochemical charge storage mechanisms in solid media can be roughly (there is an overlap in some systems) classified into 3 types: Electrostatic double-layer capacitors (EDLCs) use carbon electrodes or derivatives with much higher electrostatic double-layer capacitance than electrochemical pseudocapacitance, achieving separation of charge in a Helmholtz double layer at the interface ...

6. Laptop - Wikipedia

   en.wikipedia.org/wiki/Laptop

   A few of the oldest laptops used non-rechargeable batteries, or lead–acid batteries. Battery life is highly variable by model and workload and can range from one hour to nearly a day. A battery's performance gradually decreases over time ; a noticeable reduction in capacity is typically evident after two to three years of regular use ...

7. Vanadium redox battery - Wikipedia

   en.wikipedia.org/wiki/Vanadium_redox_battery

   Pissoort mentioned the possibility of VRFBs in the 1930s. [9] NASA researchers and Pellegri and Spaziante followed suit in the 1970s, [10] but neither was successful. Maria Skyllas-Kazacos presented the first successful demonstration of an All-Vanadium Redox Flow Battery employing dissolved vanadium in a solution of sulfuric acid in the 1980s.