Alexandre Guimar=E3es wrote:
> Hi,
>  =

> 	Does anyone have a good reference about end of charge voltage for
> NiMh batteries depending on the temperature ? =

>  =

> 	Reading one of Russel's posts I found his idea of using a shunt
> regulator to control the "termination" of the battery charge great but was
> not able to find any references anywhere I searched for what would be the
> best voltage to clamp. My application does not need 100% of the batteries
> capacity but temperature variation may be big and I need the batteries to
> last as long as possible. 1.4 volts "fells about right" but I would prefer
> to find some references to begin testing. =


I use _Handbook of Batteries_, Third Edition, Linden & Reddy, =

McGraw-Hill.  I don't have deep experience with NiMh discharge, but the =

graphs I'm looking at in this book indicate that terminating at 1.4 V is =

not bad for 0-45 degrees C and lower charge rates; at a charge rate over =

1.0CA or temp. colder than 20 degrees C it might be a bit early.
-- =

Timothy J. Weber
http://timothyweber.org
-- =

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