Frantisek wrote:
Sunday, April 10, 2005, 6:24:18 AM, David wrote: DO> NiMH batteries do self-discharge relatively rapidly; even moreso than DO> NiCads. Fortunately, they don't have as much of a "memory" issue as DO> NiCds. They do take several charge-discharge cycles to reach their DO> fullest capacity though.
In all I have read about batteries, it seems to me that the "memory effect" is not real, except in very controlled laboratory conditions. The loss of capacity most people describe to memory effect is just bad charging technique, overcharging, too rapid charging for the battery and similar faults. At least that's how I understand it :)
Also caused by overdischarging of batteries - that is, those that are made up of groups of cells. This can lead to one cell becoming partly reverse polarised and damaged, reducing its capacity. This is another thing to be thankful to Pentax for. AA cells are not susceptible to this - all the proprietary (= expensive) batteries are.
Good light! fra
