Battery Tubes / Extension Tubes

Shorter battery tubes allow you to reduce the overall length and weight of your flashlight by running a shorter battery.  The tradeoff is reduced runtime.  

Extension tubes allow you to extend your runtime by adding extra cell(s).  If your light has been modified, you will need to double check to make sure that the driver you are using can handle the extra voltage. 

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Convoy L2 2x18650 2x26650 Unibody Tube - Block-style Knurling
This replacement tube gives you full-time 2x26650 capability without an extension along with incredi..
$7.95
Convoy L4 Extension Tube
This extension tube allows you to extend your L4's runtime by adding an extra 18650 battery. &n..
$4.79
Convoy S2+ 18350 Flashlight Tube - Black
This tube will let you transform your black Convoy S2+ 18650 light into a shorter 18350 light!&..
$3.85
Based on 1 reviews.
Convoy S2+ 18350 Flashlight Tube - Blue
This tube will let you transform your blue Convoy S2+ 18650 light into a shorter 18350 light!  ..
$3.85
Convoy S2+ 18350 Flashlight Tube - Green
This tube will let you transform your green Convoy S2+ 18650 light into a shorter 18350 light!&..
$3.85
Convoy S2+ 18350 Flashlight Tube - Grey
This tube will let you transform your grey Convoy S2+ 18650 light into a shorter 18350 light!&n..
$3.85
Convoy S2+ 18350 Flashlight Tube - Red
This tube will let you transform your red Convoy S2+ 18650 light into a shorter 18350 light!&nb..
$3.85
Based on 1 reviews.
Emisar D4 18350 Battery Tube
This 18350 tube will allow you to shrink your Emisar D4 flashlight down to an even smaller size! &nb..
$5.00
Supfire M2-Z Extension Tube (For Modified Light)
This extension tube will allow you to run use additional 18650 batteries on your M2-Z.  This is..
$1.85
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