SHARK runtime graph?

[EatSleepRunBike]

What is the output curve like for the SHARK board. Is the regulation going to be flat until the end of the battery's life and just die, or is it going to have a more steady decline in output? This is somewhat important because I don't want my light to turn off while riding my bike full speed down the trail.

 

[AndyTiedye]

Other inquiring bike riders would like to know this also, as we all build out those wonderful bike light heads from Ktronik.

 

[dat2zip]

The Shark will hold regulation to below 3V in most cases. Since the Shark is typically used with higher battery voltage configurations the die out curve will be whatever the end of battery conditions will give. If the batteries have internal cutoffs, then most likely the light will be in full regulation and then just go dark without any warning.

Most likely this will be the case for the majority of uses with multiple batteries as the Shark will try to draw or hold regulation till the very end.

You can guestimate the runtime using the battery Amp/Hr rating and the Load/efficiency numbers of the Shark. That should give you an approximate run time number.

-Wayne

 

[EatSleepRunBike]

Thanks for the info.