having a problem with my tk21

basballny2 · Sep 7, 2011

hey guys i bought a tk21 about 2 months ago and its ran great until the last couple days. it would go into turbo but then after about 2-3 seconds kick itself down to high mode. i thought maybe the batteries were dying so i charged the batteries and its still doing the same thing. its not the batteries because my other lights are functioning properly with the same batteries. any thoughts?
thanks
dan

kj2 · Sep 7, 2011

Which brand batteries are you using?

basballny2 · Sep 7, 2011

ultrafires unfortunatly, i just read that the rechargable 18650's in this light are whats causing this to happen. do you know a place for good rcr123's with a good charger for them?

kj2 · Sep 7, 2011

I'm using Tenergy's 18650 in mine TK21, and they are doing fine

Here is a topic about rcr123 ( http://www.candlepowerforums.com/vb/showthread.php?147790-Best-RCR123-3.6V-on-the-market )

But the TK21 can only handle > 3V CR123A batteries

basballny2 · Sep 7, 2011

so i cant use a 3.6v rcr123/cr123?

swan · Sep 7, 2011

basballny2 said:
so i cant use a 3.6v rcr123/cr123?

You can use- 2 x cr123, 1 x 18650- You cannot use 2 x rcr123.

kj2 · Sep 7, 2011

basballny2 said:
so i cant use a 3.6v rcr123/cr123?

No 2* (r)cr123 (3,7V) -That led can't handle that much voltage.

having a problem with my tk21

basballny2

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kj2

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swan

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