Olight M21 Warrior No Brainer ?

crankshaft03

Newly Enlightened
Joined
Jun 15, 2010
Messages
1
Olight M21 Warrior put the battery in backwards UltraFire blue 18650, the light did not like it, real dim, my mastake. any help Please ?
 

cyclesport

Enlightened
Joined
Feb 14, 2012
Messages
676
I seem to remember Olight's M series has reverse battery protection...if so, and it's still within warranty, try exchanging or returning it.
 
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