battery charger
There is a non microcontroller circuit in "The robot builders bonanza" by mccomb (excellent book by the way).
Assumes you have a DC power supply available.
A related question:
McComb suggests a charge rate of 10% of the Ah rating of the battery (2Ah=200ma charge current)
The tutorial found from the link provided by Johnson 777717 (**broken link removed**) suggest a rate of 25% for lead acid.
Anyone have any opinions ?
McComb suggest a cheap way to charge batteries is to use a AC adapter with the proper voltage/current output. I like cheap :wink: and simple so I'm keeping my eye out at the surplus store for the right adapter. Had been looking for a 6v/250ma for a 2.5Ah lead acid. Now it seems I could use up to 625ma.
Thanks
Marc