Well I bought one of those cheap 3 dollar <5mw red lasers, but it seems the spring that the button cell batteries sat against broke. How does one power this laser?
I think these button cell pointers can't be disassebled withouth harming them. If you still manage to do it you could solder the spring back or at a last try you could use some metal spacer like a magnet to fill the space between the cells and the remains of the spring.
yes, small magnets can be used, BTW I remember that page... Sometime ago I bought "THE DEATH MAGNET" from them to play with it for a little. It still scares me.
Shouldn't the question be part of the thread title?
I know, I know, I'm a thread title nazi... I just have a pet peeve in ALL my forums about ambiguous names like "check this out" and "help please."
A well-oiled forum LIVES on accurate thread titles, both for today and in the future when someone is searching thread titles looking for info (the most popular kind of search).