Re: NIMH charge early termination

"Dave VanHorn" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]: 

> 
> "Dyche Anderson" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>> Yes, it's not fully charged.  Sounds like the manufacturer is 
trying
>> to 
> tell
>> you something:  Charging an NiMH battery at the combination of high
>> temperature, high state of charge, and high current is not good for
>> the battery.
> 
> Well, I wouldn't normally think of C as "high current"..
> State of charge is is roughly 50%
> 
> What do you think they are trying to tell me here?
> They don't do too well at answering my questions.
> 
>> Dyche Anderson
>>
>>
>> "Dave VanHorn" <[EMAIL PROTECTED]> wrote in message
>> news:[EMAIL PROTECTED]
>> >
>> > 2100Mah Cells, in a six-pack, being charged at C.
>> > Mfgr says to terminate high rate, at 40C.
>> >
>> > The pack runs up from 28C to 40C in 26 mins, with voltage slope
>> > still rising, indicating to me that it's nowhere near full
>> > charge.... 
>> >
>> > Not sure what to do here,  I hate to push the mfgr's spec, but 
40C
>> > seems 
>> to
>> > be unusually low.

Cells in a tight pack without much means for heat dissipation? Since 
NiMH charging is exothermic you have to take it easy charging in this 
situation.

Tim