AVR-Chat

At 09:28 PM 1/23/2004 +0800, Kathy Quinlan wrote:
>Hi All,
>
>Need some ideas on charging nicads to get the most life out of them in
>low duty cycle pulsed current load and as long life as possible
>
>Situation is similar to a smoke alarm.
>
>Any ideas ?

Not the best suited battery for this app.  Lead acid, with the input 
voltage set to their float spec, are probably best for long term float.

Other than that, keep the nicads charged with <0.1C maybe 0.01C if their 
delf-discharge spec says you'll be energy positive.