Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Regarding batteries, which lasts longer?

2 AA 2700 mAH rechargable battries or 1 CR-3V 2100 mAH rechargable battery.

2 Answers

Relevance
  • 1 decade ago
    Favorite Answer

    The 2700 mA-hour (2.7 amp-hour) has more energy storage than the 2100 mA-hour unit. Bu about 28%.

    .

  • Roy <
    Lv 6
    1 decade ago

    On paper the 2 x AA 2700 mAH rechargeable batteries should last longer, however you would need to define what you mean by "last longer", whether the batteries use the same technology and what purpose you using them for.

    eg you may find that 2 x 2700mAH NiMH AA batteries don't perform as well as 1 x 2100mAH Lithium CR-3V when in a cold environment.

    What discharge characteristics does your equipment need ?

Still have questions? Get your answers by asking now.