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Adding 18650 to C8 too much voltage?
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#1 (permalink)      11/14/2014 7:24:28 PM US Central   quote/reply + tips
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sirlance207
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Adding 18650 to C8 too much voltage?
I looked around and see the xml emitters and the drivers here say Max volts to be 3.7 and 4.7 volts. My question is; Doesn't stacking 2 18650's make 7.4 volts? This will work ok with the convoy C8? Or am I missing something?

sirlance207 marked this question as answered on 11/15/2014 at 8:31 AM
You'll get over it, or you'll die thinking about me. Either way I win!
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airbagz
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You'd have to replace the driver with one that could handle 8.4V or you'd be seeing some magic smoke very quickly. :)
I just need one more flashlight. Just one. Honestly. :D
#2 (permalink)      11/14/2014 8:33:35 PM US Central   quote/reply + tips
airbagz
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You'd have to replace the driver with one that could handle 8.4V or you'd be seeing some magic smoke very quickly. :)
I just need one more flashlight. Just one. Honestly. :D
#3 (permalink)      11/15/2014 7:40:21 AM US Central   quote/reply + tips
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sirlance207
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Then this would be useless to me? I don't want to change drivers. That should be in the description. Then again why would they care if I blew up my light or myself? The flashlights don't even have max volts anywhere in description. I see no drivers over 4.7v, unless I searched wrong..

I just stuck this in my cart, then later while I was working I thought about the increased volts. Others may not even think about it. Yikes! Out it goes...

Edited on 11/15/2014 at 7:52 AM. Reason:
You'll get over it, or you'll die thinking about me. Either way I win!
#4 (permalink)      11/15/2014 7:55:50 AM US Central   quote/reply + tips
airbagz
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I think a lot of people think they will get longer runtimes by adding another batt. And probably quite a few who learned never to do that again. lol

2 cells in series will double the voltage, but not the capacity. If the cells are in parallel, it will double the capacity but not the voltage.
I just need one more flashlight. Just one. Honestly. :D
#5 (permalink)      4/22/2015 1:11:01 AM US Central   quote/reply + tips
lightjunkie
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I was thinking about this my self, I am going to run a direct drive fet driver ,driving a xplv6 from international outdoors on a 20 mm noctigon pure copper pad but does anyone how hard the xplv6 can be driven?I really would appreciate before I make magic smoke appears or worse.
#6 (permalink)      4/22/2015 8:13:12 AM US Central   quote/reply + tips
airbagz
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does anyone how hard the xplv6 can be driven?



Probably the best place for questions like that would be one of the flashlight forums, like budgetlightforum or candlepowerforum.

I just need one more flashlight. Just one. Honestly. :D
#7 (permalink)      5/18/2016 11:35:49 AM US Central   quote/reply + tips
Iassen
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My variant - Convoy C8 + 2 еxtension tubes, 3 battery H-4 / 3AF4500 /1.2V, 4500mA, Ni-Mh /, driver 7135x8. Works at low temperatures / - 20C /. 95% compliance in appearance, in conclusion - perfect!