about batteries...
Thread Starter
Joined: Aug 2000
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From: formally Alamo battleground, now the crocodile with palm trees!
about batteries...
I suppose this is the most appropriate place to ask about batteries...
I am talking about your standard home or discman-use batteries (A,AA, AAA etc.) Many of my AA batteries are in the need of being replaced. I have noticed that Nickel Metal-Hydryde (NiMH) are slowly replacing NiCD batteries. What is the difference between a NiMH and NiCD battery (besides the chemical element)? Do the NiMH suffer from the memory effect as well? Is there a higher ampere capacity? Besides, can anyone explain me why the standard rechargable batteries (AA, AAA) always come in 1.2V instead of 1.5V?
I am talking about your standard home or discman-use batteries (A,AA, AAA etc.) Many of my AA batteries are in the need of being replaced. I have noticed that Nickel Metal-Hydryde (NiMH) are slowly replacing NiCD batteries. What is the difference between a NiMH and NiCD battery (besides the chemical element)? Do the NiMH suffer from the memory effect as well? Is there a higher ampere capacity? Besides, can anyone explain me why the standard rechargable batteries (AA, AAA) always come in 1.2V instead of 1.5V?
Joined: Dec 1998
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From: Escapee from Ultima Thule
The voltage difference is because the chemical reaction for each type of cell is different, resulting in a different voltage. Each individual cell then gets connected in series &/or parallel to make up the required voltage & capacity however the physical size of the packaging imposes limits on just how many cells can be used.
NiMH do have a memory effect, but it's not as bad as NiCad, There are also limits to the number of recharges the different types have.
NiMH do have a memory effect, but it's not as bad as NiCad, There are also limits to the number of recharges the different types have.
