FYI i was brave enough to measure my current draw on my DL 589

[joeyss]

1.84 or 1.85ish amps on my PSU at both 3.6 v and 4.2.

I expected more since my 808 dioide from a 400mw green that came loose draws 2 amps,

 

[gozert]

How exactly can you measure this? I've never really understood how it works.

 

[Deleted member 49011]

In mot cases a amp meter in series with the battery and the case at the tail cap end will show the current drawn from the cell , but if its a boost/buck driver the diode current may differ from the current measured from the cell .

That's one way I believe you can do it .

 

[Pi R Squared]

Yes just remove the tail cap and use your DMM. The current from the batteries will always be different than the current to the diode, the most efficient driver is probably 92%. There's always some power dissipated as heat from the driver.

Alan