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  2. AlphaSmart - Wikipedia

    en.wikipedia.org/wiki/AlphaSmart

    The original rechargeable NiCd battery pack was not compatible with this model. Instead, it used a new optional nickel metal hydride battery (NiMH) pack that lasted longer and eliminated the memory effect of NiCd batteries. The AlphaSmart 3000 had the customary 8 files, each with a capacity of 12.5 pages (about 25 kilobytes), for a total of 100 ...

  3. Cobasys - Wikipedia

    en.wikipedia.org/wiki/Cobasys

    ECD Ovonics, half owner of Cobasys, was founded in 1960 by Stanford R. Ovshinsky, [5] a scientist and inventor, with his wife and collaborator Iris M. Ovshinsky. [6] [7] Mr. Ovshinsky invented a variation on the NiMH battery, and ECD Ovonics holds crucial patents on some types of NiMH battery technology, licensing them to all major NiMH battery producers.

  4. Nickel–metal hydride battery - Wikipedia

    en.wikipedia.org/wiki/Nickel–metal_hydride_battery

    A nickel–metal hydride battery (NiMH or Ni–MH) is a type of rechargeable battery. The chemical reaction at the positive electrode is similar to that of the nickel–cadmium cell (NiCd), with both using nickel oxide hydroxide (NiOOH). However, the negative electrodes use a hydrogen-absorbing alloy instead of cadmium.

  5. List of battery sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_battery_sizes

    This battery typically had two snap connectors; however, four [clarification needed] connector versions are available. They were spaced 35 mm (1 + 3 ⁄ 8 in) apart. This type of battery is sometimes used in electric fencing applications. PP9: 276 NEDA 1603 6135-99-945-6814 (NSN) IEC 6F100 5,000: 9: H: 81.0 L: 66.0 W: 52.0

  6. Comparison of commercial battery types - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_commercial...

    30– [22] 50 [23] [24] Nickel–cadmium: NiCd NiCad Cadmium: KOH Yes c. 1960 [25] 0.9–1.05 [26] 1.2 [27] 1.3 [26] 0.11 (30) [27] 0.36 (100) [27] 150–200 [28] 10 [13] Nickel–hydrogen: NiH 2 Ni-H 2: Hydrogen: KOH Yes 1975 [29] 1.0 [30] 1.55 [28] 0.16–0.23 (45–65) [28] 0.22 (60) [31] 150–200 [28] 5 [31] Nickel–metal hydride: NiMH Ni ...

  7. Patent encumbrance of large automotive NiMH batteries

    en.wikipedia.org/wiki/Patent_encumbrance_of...

    But Chevron Corp. held the patent US6969567 for the NiMH multi-cell battery pack for cars [37] until its expiration on August 23, 2018. [38] This particular patent's maintenance fees for the 4th (2008) and 8th (2012) years were paid. [39] As of December 2019 the status was "2019-12-04 Application status is Expired - Fee Related". [38]

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