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Re: NiMH Battery Question

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"Dave Platt" <dplatt@coop.radagast.org> wrote in message 
news:6le4ue-fb4.ln1@coop.radagast.org...
>>Hello all,
>>
>>Quick question.  What would the expected voltage be
>>for a new VARTA 3.6vdc 70mAH NiMH rechargeable battery??
>
> That depends on its level of charge.
>
>>Or maybe the better question would be:
>>If the voltage is at 1.76vdc would the battery be good??
>
> Possibly, if it's newly manufactured, and had been built and shipped
> in a discharged state.
>
> NiMH cells have a nominal voltage of around 1.2 volts per cell, so a
> "3.6-volt" nominal battery consists of three cells in series.
>
> They're often rather higher when freshly/fully charged... I see around
> 1.45 volts when they're being charged.

Those figures sound about right - but don't forget the temperature 
coeficient that makes the terminal voltage to drop slightly at full charge.

They're slightly endothermic while charging - at full charge the energy put 
in starts producing heat. 

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NiMH Battery Question ABLE1 <somewhere@nowhere.net> - 2018-05-30 21:08 -0400
  Re: NiMH Battery Question ehsjr <ehsjr@verizon.net> - 2018-05-31 01:45 -0400
    Re: NiMH Battery Question Brian Gregory <void-invalid-dead-dontuse@gmail.com> - 2018-07-19 00:45 +0100
    Re: NiMH Battery Question "Ian Field" <gangprobing.alien1@virginmedia.com> - 2018-11-17 20:33 +0000
  Re: NiMH Battery Question dplatt@coop.radagast.org (Dave Platt) - 2018-05-30 22:43 -0700
    Re: NiMH Battery Question ABLE1 <somewhere@nowhere.net> - 2018-05-31 08:04 -0400
      Re: NiMH Battery Question Jon Elson <elson@pico-systems.com> - 2018-06-04 17:36 -0500
        Re: NiMH Battery Question ABLE1 <somewhere@nowhere.net> - 2018-06-04 19:26 -0400
    Re: NiMH Battery Question "Ian Field" <gangprobing.alien1@virginmedia.com> - 2018-06-11 21:38 +0100

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