Battery in mech mod.

[Slodog79]

Is it normal for a battery in a mech mod to get a little black spot on the negative end, at the firing mechanism? It's a MXJO battery running a .6 ohm coil. Have not noticed any heat issues everything remains fairly cool to the touch.

 

[dr_rox]

That is the nature of the beast. Those areas have to be cleaned occasionally as the mod will not perform as well. The battery becomes a make/break contact as in a switch. That is why some switches fail, too. There is a tiny arc formed at moment pre and post contact that can melt the metal and leave craters.

 

[Slodog79]

Thanks for the response.

 

[dr_rox]

If the condition is bad, you can try to use a silicone dielectric grease, much like we used back in the day when cars used points instead of e-ignition. It excludes oxygen so you don't get the oxidized deposits. Use crocus cloth or 400 grit silicon carbide sandpaper to clean. Make sure to blow out the metallic dust afterwards.