Hello.
I suppose this is being asked all the time but I'm quite in a hurry and couldn't
find a proper answer on the net, so here I am with this problem: I just ordered
a new battery from Subtel for my Siemens Gigaset 100, the directions of which
mention that only Ni-Cd should be used; now, the Subtel battery I just received
is a Ni-Mh. What are the risks of using a Ni-Mh instead of a Ni-Cd, please? And
should you think of Subtel offering one for the other?
Eagerly expecting an answer,
Thanks in advance!

Hi,

I've been tasked to locate a vendor of compact rechargeable batteries
that can be mil-spec certified (though I don't know to which mil-
specs) that will last at least 24hrs under a 10W draw at 250-500mA.
The size contraints are about the size of 12 AA size batteries
arranged 2x6.

I'm not an electrical engineer nor very familiar with basic
electronics so my amateur google searches aren't directing me to the
sort of batteries that will work. If anyone out there is able to
direct me to a reputable manufacturer or vendor I'd appreciate it.

Thanks,
Philip

Hi Folks;

I know little about batteries - which is why I'm here!

I have an older laptop that I just bought a replacement battery pack for. It
uses (8) 18650 batteries.
I'm trying to find out the mah rating of the individual batteries.

The original Compaq battery was rated at 3900 MAH
The standard replacement batteries are rated at 4400 MAH
and the one I got is rated at 4800 MAH

So I figure the increase in MAH rating is due to using better 18650 cells.

Some research shows that the 18650 battery is available in different
ratings. Does anyone know how to do the math to figure out what each battery
pack originally came with?

Thanks!
Dave

Смотри, как она сосет член, она лучшая! http://ragdai.info/golaya-pravda.htm
Это видео супер!

BattChgPro Ver 1.5
Battery charging software
Nine types of battery chemistry (Secondary)
Lithium, NiCad, NIMH, Lead Acid, Nickel-Iron
Nickel-Zinc, Sodium-Sulfur, Zinc-Bromine, Alkaline
Select cell voltage and Select Battery Voltage
For batteries up to 24 cells.
Shows charge rates and durations
Charging Rates (Select/Custom)
http://www.sharewaresoftware.org/battchgpro/battchgpro.htm

I'm looking for data on the short circuit current for the bare cells
before the internal protection ptc cuts out. I'm using Samsung 2.4Ah
but an idea for other makes would be useful.

I just ran into a 9 volt battery that acts like Nicads in respect
to appearing to have shorted cells. Does this happen. First time I saw
this.

greg

found a great place to sell silver oxide batteries to, im a jeweler
and i make good money from it
http://watchbatterysolution.com/

John X wrote:

I don't know if NiMH can deliver as much current as NiCd.

However, in a camera flash a NiMH recharges the flash capacitors about
as fast as a NiCd.

(The flash charge circuitry is the limiter, however. Much better than
alkaline in both cases...)

NiCd's are otherwise lower capacity, discharge-finicky and sensitive to
shock. I haven't used mine in over 7 years. Don't intend to either.