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basics | Can I replace NiCad with NiMH?


There are 9 messages in this thread.

You are currently looking at messages 0 to 9.

Can I replace NiCad with NiMH? - Mitch - 2007-03-28 11:49:00

I have some rechargable wireless headphones that I use on the
treadmill.  The NiCads have developed so much memory that they only
last about 1/2 hour.

Can I replace them with NiMH?  Will the charging dock handle them the
same?



Re: Can I replace NiCad with NiMH? - redbelly - 2007-03-28 12:58:00

On Mar 28, 11:49 am, Mitch <Mitch@...> wrote:
> I have some rechargable wireless headphones that I use on the
> treadmill.  The NiCads have developed so much memory that they only
> last about 1/2 hour.
>
> Can I replace them with NiMH?  Will the charging dock handle them the
> same?

Your headphones will probably work fine with NiMH, BUT YOU MUST USE A
DIFFERENT CHARGER, ONE MEANT FOR NIMH.

I repeat, do not charge NiMH batteries in a NiCad charger.

Mark

Re: Can I replace NiCad with NiMH? - Lionel - 2007-03-28 13:42:00

On Wed, 28 Mar 2007 15:49:09 GMT, Mitch <Mitch@...> wrote:

>I have some rechargable wireless headphones that I use on the
>treadmill.  The NiCads have developed so much memory that they only
>last about 1/2 hour.
>
>Can I replace them with NiMH?

Yes, it should work fine. I use NiMH cells on everything I have that
takes NiCads, including my expensive Canon 550-EX flashgun.

>  Will the charging dock handle them the
>same?

That's a different story. If it trickle charges (eg; 12+ hours on
NiCad cells), it should be fine. If it uses a fast-charge system, it
might be okay, but you're tempting fate. Just go & spend $20 on a
generic NiMH fast charger.


-- 
   W  "Some people are alive only because it is illegal to kill them."
 . | ,. w ,      
  \|/  \|/              Perna condita delenda est
---^----^---------------------------------------------------------------

Re: Can I replace NiCad with NiMH? - Mitch - 2007-03-28 16:14:00

>I repeat, do not charge NiMH batteries in a NiCad charger.

Glad I asked...thanks!

Re: Can I replace NiCad with NiMH? - Eeyore - 2007-03-29 03:41:00


Mitch wrote:

> I have some rechargable wireless headphones that I use on the
> treadmill.  The NiCads have developed so much memory that they only
> last about 1/2 hour.
>
> Can I replace them with NiMH?  Will the charging dock handle them the
> same?

Almost invariably they're fine.

Graham

Re: Can I replace NiCad with NiMH? - Eeyore - 2007-03-29 03:45:00


redbelly wrote:

> On Mar 28, 11:49 am, Mitch <Mitch@...> wrote:
> > I have some rechargable wireless headphones that I use on the
> > treadmill.  The NiCads have developed so much memory that they only
> > last about 1/2 hour.
> >
> > Can I replace them with NiMH?  Will the charging dock handle them the
> > same?
>
> Your headphones will probably work fine with NiMH, BUT YOU MUST USE A
> DIFFERENT CHARGER, ONE MEANT FOR NIMH.
>
> I repeat, do not charge NiMH batteries in a NiCad charger.

Why ?

Graham

Re: Can I replace NiCad with NiMH? - Rich Grise - 2007-03-29 16:40:00

On Thu, 29 Mar 2007 08:45:53 +0100, Eeyore wrote:
> redbelly wrote:
>> On Mar 28, 11:49 am, Mitch <Mitch@...> wrote:
>> > I have some rechargable wireless headphones that I use on the
>> > treadmill.  The NiCads have developed so much memory that they only
>> > last about 1/2 hour.
>> >
>> > Can I replace them with NiMH?  Will the charging dock handle them the
>> > same?
>>
>> Your headphones will probably work fine with NiMH, BUT YOU MUST USE A
>> DIFFERENT CHARGER, ONE MEANT FOR NIMH.
>>
>> I repeat, do not charge NiMH batteries in a NiCad charger.
> 
> Why ?
 
It lets the magic smoke out.

Good Luck!
Rich

Re: Can I replace NiCad with NiMH? - Old Mac User - 2007-03-29 17:32:00

On Mar 29, 2:45 am, Eeyore <rabbitsfriendsandrelati...@hotmail.com>
wrote:
> redbelly wrote:
> > On Mar 28, 11:49 am, Mitch <Mitch@...> wrote:
> > > I have some rechargable wireless headphones that I use on the
> > > treadmill.  The NiCads have developed so much memory that they only
> > > last about 1/2 hour.
>
> > > Can I replace them with NiMH?  Will the charging dock handle them the
> > > same?
>
> > Your headphones will probably work fine with NiMH, BUT YOU MUST USE A
> > DIFFERENT CHARGER, ONE MEANT FOR NIMH.
>
> > I repeat, do not charge NiMH batteries in a NiCad charger.
>
> Why ?
>
> Graham

Because that will ruin the NiMH battery and may smoke up your
workshop. OMU

Re: Can I replace NiCad with NiMH? - Puckdropper - 2007-03-29 20:27:00

Rich Grise <r...@example.net> wrote in 
news:p...@example.net:

*snip: Why not to charge NiMH with NiCd chargers*

>  
> It lets the magic smoke out.
> 
> Good Luck!
> Rich
> 

I've had NiMH on a NiCd charger (NiMH/NiCD switchable) for somewhere 
around 15 minutes once.  While the batteries appear to have survied 
without incident, they did get really hot.  It makes me wonder if they 
could explode.  (Heat --> pressure --> POW!)

Puckdropper
-- 
Wise is the man who attempts to answer his question before asking it.

To email me directly, send a message to puckdropper (at) fastmail.fm