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400mAh 8.4V 2/3AAA Ni-MH Rechargeable Battery Pack

( 8 Reviews)
 
US $8.98
 
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In Stock: 000 piece
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Product FAQs
  • What is Ni-MH Battery?
  • A nickel-metal hydride cell, abbreviated NiMH, is a type of secondary electrochemical cell similar to Nickel Hydrogen cell. The NiMH battery uses a hydrogen-absorbing alloy for the negative electrode instead of cadmium. As in NiCd cells, the positive electrode is nickel oxyhydroxide (NiOOH). A NiMH cell can have two to three times the capacity of an equivalent size Nickel-cadmium battery. However, compared to the lithium-ion cell, the volumetric energy density is lower and self-discharge is higher.

  • What about its environment impact?
  • NiMH batteries are commonly considered to have lower environmental impact than NiCd batteries, due to absence of toxic cadmium. The overall environmental impact of mining the various alternate metals that form the negative electrode may be more or less than cadmium, depending on the metal, mining method, and environmental practices of the mine. Most industrial nickel is recycled, due to the relatively easy retrieval of the metal from scrap, and due to its high value.

  • What is Battery Pack?
  • A battery pack is a set of any number of (preferably) identical batteries or individual battery cells. They may be configured in a series, parallel or a mixture of both to deliver the desired voltage, capacity, or power density. The term battery pack is often used in reference to RC hobby toys and battery electric vehicles.

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