Lumileds strikes back!

enLIGHTenment

Enlightened
Joined
Feb 5, 2005
Messages
814
Location
Ottawa, Canada
x2x3x2 said:
Question #1: Can 3.7V Li-Ion batts like 18650 and RCR123 handle current draw of 2A+, taking into consideration extra current draw from a single 18650 3.7V cell to reach 4.15V with boost circiut.

A single R123A wouldn't like pushing out ~3A to run the Lux HB at 8.3 watts.

Shouldn't be a problem with an 18650 or two R123A cells, however. On a 7.4V (2x R123A) light, current draw for 8.3W is only ~1.6A even with a 70% efficient buck converter. This is easily manageable with current cells.
 

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