- Freshly charged 18650 only giving three blinks and occasionally four with no consistency in my S1 after I ordered and installed an 18650 body tube. Battery behaves just fine and checks just fine in other lights. I think it's specific to the light. Possibly a short or dirty threads? Thanks in advance and any help is certainly appreciated.
i dunno, i never use battery check, i just see how bright it can get, if it starts having 5 or 6 modes instead of 8, time for a recharge
wle
Don’t worry about the batt check too much. If turbo looks okay, your battery is fine. Built-in batt check modes are often not very accurate.
Check the bat with a multimeter?
How long ago u buy the s1?