CooYoo Quantum Titanium, few pics and test

Megatrowned

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Joined
Jun 11, 2012
Messages
443
Location
Wisconsin
Question of those who have one of these. If put on a keychain, how likely is it to loose the head of the light? This has happened to me before :mecry:
 

Budda

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Joined
Nov 30, 2009
Messages
559
Location
Italy
I carry mine around my neck with same cord. The head didn't come loose.
If you are afraid of head loosening, try change the oring with a thicker one.

I tested with an original IMAX B6 my 2 10180 of my cooyoo at 0.2A discharge from 4.2 to 3.0 Volt. I had 65 mA for each.
 

PapaLumen

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Apr 19, 2010
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802
Location
UK
Just remembered this. Thanks Ven for size reference, does indeed look perfect for keyring duty.
 

Budda

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Nov 30, 2009
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559
Location
Italy
;-)
I had on my neck one of these for a month, I'm very happy.
I took one of them under the shower with me, no prolbem.
 

Dompud

Member
Joined
Oct 16, 2015
Messages
12
My Brass CooYoo just arrived today and sadly it doesn't work :( I've tried multiple charged 10180 batteries and nothing gets even the faintest output. The usb charger led comes on when I plug the body in but that's the only sign of life in it.
I don't suppose anyone has any ideas on things to try to bring it to life?

Time to find out what GearBest's customer service is like!
 

Dompud

Member
Joined
Oct 16, 2015
Messages
12
YES! THAT WAS IT! I haven't felt this stupid in a long, long time.

Thank you both so much for the super quick help. CPF is clearly the best customer support solution out there :)

What a great little light. I love it!
 

Energie

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Joined
Nov 12, 2006
Messages
302
Location
Germany
Hi Budda,
thanks for the review.

COOYOO7.jpg
 

Joe Talmadge

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Joined
Aug 30, 2000
Messages
2,202
Location
Silicon Valley, CA
I absolutely love my Quantum, it's knocked everything out of my front pocket, but I do have a strong concern. The head is really easy to twist. A few weeks ago, I took my light -- with recently charged battery, barely used -- out of my pocket, and it barely emitted any light. Put the battery on the voltmeter, sure enough, it was low. I'd imagined the light was getting warm in my pocket a few times, obviously it had turned itself on a few times. Okay, duly noted, I started turning the light off with a full half twist off... But 2 weeks later, same thing, pull out light, battery is low. Once may be an accident, but twice, considering this is an unprotected battery, puts me in the "permanently shelve" category for this light. I'm giving it one more try, and turning it off with an even longer twist, will see what happens
 
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