Barmybaz
Member
I wish to run 16 leds from lithium cells,
12 with a forward voltage of 1.8 - 2
4 with a forward voltage of 2 -2.4
all with a current rating of 20 ma
I have done this in the past using Alkaline cells but all the info suggests putting a resister to each Led,
Why is this ?
I wan't to make this project as small as possible, I seem to remember being told that with lithium cells you don't need a resister in line,
I have a number of CR2032 lithium cells rated at 3 volt
can I use these ?
to get a sensible battery life how many would I need to wire in parallel,
Help please,
Baz
12 with a forward voltage of 1.8 - 2
4 with a forward voltage of 2 -2.4
all with a current rating of 20 ma
I have done this in the past using Alkaline cells but all the info suggests putting a resister to each Led,
Why is this ?
I wan't to make this project as small as possible, I seem to remember being told that with lithium cells you don't need a resister in line,
I have a number of CR2032 lithium cells rated at 3 volt
can I use these ?
to get a sensible battery life how many would I need to wire in parallel,
Help please,
Baz