Is "break-in" needed for NiMH batteries

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Is "break-in" needed for NiMH batteries

Alan Price-3

The subject line says it all.  I have seen different opinions on this. 73AlanW1HYV    
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Re: Is "break-in" needed for NiMH batteries

Chip Stratton
Not required, bu a couple of cycles of c/10 x 16hrs followed by discharge
to 1.0 V will prime the cell for its best capacity. In my experience it
seems you gain on the order of 5% initially by doing this. How that
advantage holds up over time I dont know.

Chip
AE5KA

On Monday, January 7, 2013, Alan Price wrote:

>
> The subject line says it all.  I have seen different opinions on this.
> 73AlanW1HYV
> ______________________________________________________________
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>
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Re: Is "break-in" needed for NiMH batteries

daleputnam
Chip is correct from my viewpoint, having been responsible for up to 3000 ni-cd batteries at a time, over a multi year period, itbecame very clear, very quickly, that following the recommended inital cycle at least once, and preferably twice, then followinga strict adherance to fully cycling once a month, would and did extend the battery life. In a high percentage, the extention was double,that of the life of not caring for it. For example, if the duty usage was such that the batteries were normally not cared for, then failed on an average of between one and two years, proper care, would extend that battery life by at least two additional years, and usually well into the third year. Some exceptions were noted, with no explanation offered, other than quality of material. And.. of course.. YMMV.

Have a great day,
 
 
--...   ...--
Dale - WC7S in Wy
 
 

 
> Not required, bu a couple of cycles of c/10 x 16hrs followed by discharge
> to 1.0 V will prime the cell for its best capacity. In my experience it
> seems you gain on the order of 5% initially by doing this. How that
> advantage holds up over time I dont know.
>
> Chip
> AE5KA
     
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