The positive active material is mainly made of nickel, and the negative active material is mainly an alkaline battery made of hydrogen storage alloy.Nickel-metal hydride (nimh) batteries are modified from nickel-cadmium (nicd) batteries, which offer higher capacitance, less obvious memory effects, and lower environmental pollution at the same price.The special charger can be used for quick charging in one hour. The self-discharge characteristic is better than nickel-cadmium battery, which can be retained for a longer time after charging and can be repeated for more than 500 times.
The charger adopts high frequency switching rectifier power-supply module. The working process of the charger is controlled by microprocessor in real-time, automatic power on/off, simple operation, safe and reliable. The user can view the operation parameters and working status through the touch screen.
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Les Moonves, chief executive of CBS, confirmed the above news during a public speech at the Recodes Code news conference on Wednesday and stated that CBS may become one of the content providers for the other TV service. He also said that he is currently discussing this matter with Eddy Cue, Apple’s senior vice president responsible for this business.
In addition, the British Financial Times reported that Apple will also develop in-depth automotive video services.
This means that the appearance of the U.S. television industry is undergoing a marked change. Apple, Netflix, Amazon, and other emerging video service providers are impacting the video market that traditional cable operators have long occupied. 
The Wall Street Journal reported in March 2015 that Apple had entered the Internet TV service sector. The report also said that Apple's Internet TV content providers include CBS, ABC, Fox. But it does not include NBC, because Apple and NBC Holdings, the United States's largest cable TV operator Comcast, have a holiday. In addition, content partners will also include ESPN. Apple chose to remain silent on the news.
It is worth mentioning that PlayStation Vue, Sony's Internet-based online TV service, partners with CBS and Fox, but also includes NBC, but does not provide ESPN video programs. Sling TV, the streaming media Internet TV service provider controlled by Dish Network, has not cooperated with CBS and has not cooperated with any other broadcast channel, but it will broadcast ESPN TV programs.
Many people believe that Apple will disclose the above plans at the developer conference in June and strive to release it at the end of 2015.
Les Moonves also said on Wednesday: "I think the era of 200 TV channels will gradually disappear. The good news for us is that no matter who is, we cannot leave CBS." CBS is a content provider for American television programs.
When asked what factors will determine whether CBS will sign a partnership agreement with Apple, Les Moonves simply answers: "Money." 
Apple not only intended to enter the field of Internet online video, but also aimed at the automobile "terminal mobile device." According to the Financial Times of the United Kingdom, Apple's senior vice president Jeff Williams revealed Apple's ambition to change the automotive industry when he attended the Recodes Code conference on Wednesday.
An audience asked him: How will Apple deploy its huge cash reserve of nearly $200 billion? Jeff Williams replied that Apple has launched an in-car infotainment system called CarPlay. The user can connect the iPhone with the display device on the dashboard to watch the video content.
GM, Ford and Hyundai Motors have stated that they plan to load CarPlay into the company's cars in the coming year.
Today, U.S. traditional TV operators are facing more and more challenges from emerging Internet video service providers. Demand for traditional pay-TV services and bundles has been decreasing for television viewers, and more and more consumers are choosing to watch videos over the Internet. However, many people still find it difficult to abandon the content of sports events produced by watching ESPN through traditional TV terminals. Wall Street News mentioned on the 26th that the United States Cable TV and broadband communications service provider Chart TV was approaching $55.1 billion to acquire Time Warner Cable. 
Apple confirmed to enter the Internet TV business
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