Well that's far more info than I ever thought my question could
possibly generate by about a factor of 10, but very enlightening.
Thanks.
James
On 17 May 2007, at 16:11, Ian Manners wrote:
>
> Hi Chuck
>
>> Thanks for the info but, as I understand your description, the
>> adverse
>> effects only come about if, after draining the batteries to the
>> capacity
>> of the smaller you then recharge them simultaneously in the same
>> charger
>> which risks overfilling the larger. My Maha chargers charge
>> batteries
>> in pairs. What damage (if any) would occur if I always recharged the
>> batteries paired by their respective capacities?
>
> If you charge them in pairs of the same capacity (or individually),
> and
> never discharge them past the first sign of the dip in the discharge
> curve, then you would be fine but there is a slight problem, being
> able to tell when the dip in the curve has been reached. You could
> of cause just use them for X number of flashes/photos if you know
> that the smaller capacity batt's normally last for x+10 or something.
>
> In the real world, rarely works that way even with the best of
> intensions.
>
> In relation to the small difference in the capacitys of the battery's
> mentioned early, if I could not use the smaller ones in something else
> myself, and as I have a 6 array charge unit with individual charge
> circuits for each cell in the charger, to be honest I would use them,
> better than letting them go to waste on the shelf.
>
> My golden rule though is to always buy just the number of
> rechargables I need, always in the same brand and capacity. If
> I have a spare left over I'll put it in my wifes toys (the furbies)
> or the one of the torchs in the workshop that get regular use.
>
> When one starts to go and doesnt want to be revived I ditch the
> whole batch/set and replace them, they are certainly cheap enough
> these days that even an unemployed person like myself can afford
> them, which makes me wonder just what sort of quality I'm really
> buying. I'm still on the same 8 NiMH batterys I bought a few
> years ago I might add. 4 in my wifes canon, 2 in each torch.
>
> Li-ion batts on the otherhand, I treat with a lot more respect, ditto
> polymag something or rather batt's, those things you do not
> want to mix as they are very touchy. See Dell/IBM/Lenovo/Sony
> notebooks etc etc, always do your best to get them all with the
> same batch number on. They will last longer, and be a lot safer
> as the discharge charicteristics should be a lot more similiar.
>
> Cheers
> Ian Manners
> http://www.comkal.net/
>
>
> "The statistics on sanity are that one out of every four Americans
> is suffering from some form of mental illness. Think of your three
> best friends. If they are okay, then it's you." -- Rita Mae Brown
>
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