I use a smart charger with "NiMH" imprinted on the case, fuzzy logic peak detection,
zero delta voltage auto cut off, 8-bit 4MHz CPU
with 8k ROM 1k RAM 1 channel 16 bit ADC DSP for LPF and 8-bit PWM current control
output....
I use it to charge my very small(210mAh) NiMH, it always stops after a few(8-12)
minute, and I will have to push the button again
and it will charge for another 8-12 minute, and it will get really hot all the time,
as hot as a freshly served coffee.
This happens to my small(220mAh) NiCd too.
I think in general small battery, NiCd/NiMH just don't get along with quick chargers.
I will try the Li-ion and hope to have better luck.
Raymond Wong
> On Sun, 05 Mar 2000 15:48:38 -0500, you wrote:
>
> >At 12:58 PM 3/5/00 , you wrote:
> >>Ok, is there a field charger that is specifically for NiMH's? I haven't
> >>heard of this but heck there's a big learning curve all the
> >>time. I have no problem charging them on my Ace AT2000 charger @ 50mAh
> >>but i'm not sure what the KO PROPO BX20I charges at in the
> >>fields. On a tag it says 450-700mAh Nicd Battery Auto Cut System Charger,
> >>so I assume this would be the rate at which it charges.
> >>Any help would be appreciated, can't beat the wieght/mAh these little
> >>cells put out but if you can't field charge them, then I'm
> >>going to have to revert back to something else. Thanks
> >
> >The Sirrius charger work great on NiMH cells. I've used Astro Flight,
> >Schulze and Orbit chargers as well.
> >
> >It has to be a charger that is accurate enough to catch the peak before it
> >goes too far. NiCd cells are a lot more robust and don't mind a little
> >over charge - MiNH cells don't tolerate over charging.
> >
> >I think the KO Propo charger does about 1A.
> >
> >
> > Ralph Weaver "We have confused technological
> > Fishers, IN innovation with progress"
> > USA Niel Postman
> >
> >
> > My site http://members.home.net/rmw00
> > MTI products http://www.magtechinc.net
>
> I recently bought an AstroFlight 110D which seems to work great on
> NiCd's, but each time I have tried to charge NiMH's, it shuts off
> after a couple minutes. My Serius charger works fine on them, but I
> can't charge less than 4 cells at a time, which I would like to be
> able to do.
>
> I suspect the voltage may go up too fast on them for the AstroFlight.
> I am not sure what the problem is. Any ideas????
>
> Bruce Beddoe
> Pacific Palisades, CA
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