Led tri cree problem with red

[Blackscorpio]

Hello
I have a Tri cree star led and I use the red and the royal blue,
I have a nice purple put after 15 minutes my red dims
And go's out I use the Nano biscotte and 1 li-ion battery
Is it problem because I use 1 cell or what? Thanx

[jbkuma]

The red would stay brighter longer than the blue as battery decreases, and you should only be using one cell.

What resistors are you using? If you've under sized you might be burning out the LED.

[Blackscorpio]

The red would stay brighter longer than the blue as battery decreases, and you should only be using one cell.

What resistors are you using? If you've under sized you might be burning out the LED.

Hello I use 2.2 for the red