Canon SD450 generic battery?

Hi,

Can anyone tell me if the Canon SD450 works with generic 4L batteries? I
plugged the battery into my factory canon charger to charge the battery. I
noticed that once I plug it in, the amber charging light comes one, then
after a few seconds the green light (full charge) light comes on. Then all
lights go out. Is this normal? I have no problems charging my original
battery. When I plug it in amber light goes on till the battery is finished
charging then switches to green. There is always a light on. Please let me
know if this is normal. I've heard some cameras have a chip so generic
batteries don't work. Thanks.

 

I recently bought a couple of spare batteries for my SD 450 from
http://sterlingtek.com/ , they seem to work just as the original did...
amber, then green light on charger, light stays on. The camera is new and I
haven't had a chance to work with both batteries long enough to make a
comparison of number of shots etc. but the camera does function with the
generic battery.

Rina