View Single Post
  #20   Report Post  
Posted to alt.engineering.electrical,sci.electronics.components,sci.chem.electrochem.battery,uk.d-i-y
john2
 
Posts: n/a
Default Capacity of various Duracell AA cells?

Guy King wrote:
The message
from Owain contains these words:


Until Alkaline battery manufacturers state the Ampere hour capacity
on each
battery, I will believe that they are all the same and buy the cheapest
available.

Their argument against doing this is that the effective Ah rate of each
cell differs at different discharge rates and that comparing like with
like wouldn't be possible.



But doesn't the Ah rate of nicads vary in the same way?



Yes, but the NiMh market has gone the way of revealing it (though not
always with great accuracy).


Recharchable cells for public retail have always shown the AH, same as
car batteries.

Otherwise we wouldn't know how long to charge them in the fixed curent
chargers which was all that used to be available until recently.


john2