R
Rick J.
- Jan 1, 1970
- 0
I want to power a small 3V LED blinky device for a week or so. Normally
it runs off watch batteries, so I tried building a little
flashlight-like container to hold it and a couple of AAA batteries.
Maybe not too surprisingly, it starts to fade significantly in a day or
so. After a couple months it's still blinking, but I'd much rather it
have a shorter, brighter life.
How can I use say, 3 AAA batteries to guarantee that the thing will run
at full brightness as long as possible? The blinky light is very close
to the diameter of the batteries, so of course I'd like something that
could fit into the same tube. For that matter it would be OK to have it
pulse at full brightness with 2 batteries as long as it doesn't take too
long to charge up.
Thanks,
Rick
it runs off watch batteries, so I tried building a little
flashlight-like container to hold it and a couple of AAA batteries.
Maybe not too surprisingly, it starts to fade significantly in a day or
so. After a couple months it's still blinking, but I'd much rather it
have a shorter, brighter life.
How can I use say, 3 AAA batteries to guarantee that the thing will run
at full brightness as long as possible? The blinky light is very close
to the diameter of the batteries, so of course I'd like something that
could fit into the same tube. For that matter it would be OK to have it
pulse at full brightness with 2 batteries as long as it doesn't take too
long to charge up.
Thanks,
Rick