New member, help with Mod/battery

[Andrewl]

Hi all,

I recently bought a Sentinel M16 mod with a Sony VTC4 18650 battery.

The problem I have is that sometimes the battery will activate by itself even when the firing button is in its locked position.

Can't see anything wrong with the battery or mod, I also make sure the tubes on the mod are not too tight, the firing pin on the inside bottom cap is definitely not making contact with battery either as when not in use it's locked.

Any ideas?

Thanks. Andrew

 

[Baditude]

An auto-firing mod is an extremely dangerous situation. If you can't figure out what's causing it to autofire, don't use that mod....ever!! An auto-firing mod will quickly over-discharge a battery causing it to go into thermal runaway. This is an extremely dangerous situation and could cause the battery to vent extremely hot gas and possibly flames or explode.

I don't know enough about your specific mod to help you troubleshoot the problem. I just wanted to let you know the danger involved should you continue to use it without finding the solution.

 

[realsis]

I agree with the above post. It sounds like a specific issue with your mod. I had a nemisis that did the same and in my case I had a issue with the firing button. Sadly I am not familiar with your mod so I won't be much help with trouble shooting. But it sounds like the firing pin is likely still making contact with the battery even when it's supposed to be off or locked position. Is your pin or firing button adjustable? It definitely sounds dangerous and I wouldn't take ANY chances with it until you, without a doubt, find the problem and are Certain it is fixed_ meanwhile remove the battery so it won't self fire and cause a problem. Hope this helps a little bit

 

[Andrewl]

Hi, thanks for replying. I have actually stopped using it while I figure what's going on.

I've asked the vendor where I bought the battery from about it and to possibly send me a replacement to try.

Thanks again

 

[Andrewl]

I agree with the above post. It sounds like a specific issue with your mod. I had a nemisis that did the same and in my case I had a issue with the firing button. Sadly I am not familiar with your mod so I won't be much help with trouble shooting. But it sounds like the firing pin is likely still making contact with the battery even when it's supposed to be off or locked position. Is your pin or firing button adjustable? It definitely sounds dangerous and I wouldn't take ANY chances with it until you, without a doubt, find the problem and are Certain it is fixed_ meanwhile remove the battery so it won't self fire and cause a problem. Hope this helps a little bit

Thanks for that. The pin is adjustable yes. The weird thing is that I am absolutely the pin is not making contact with the battery as I've tested this out

 

[joelmora89]

Does it have the oring on the top of the firing switch

 

[Kaezziel]

Highly doubtful that it is self-firing due to a battery problem... likely it has something to do with the mod itself. As joelmora89 said, there should be some type of insulator on top of the firing switch outside of the firing pin. It keeps the battery raised up above the firing pin so that it doesn't fire until you raise the pin above the insulator. Also, is the shrink wrap around the battery in good condition? If the shrink wrap is damaged the battery could shift in the tube and the bottom (negative end) of the battery may touch the inside of the mod wall which would complete the circuit (the same as pressing the fire button).

 

[eratikmind]

Without seeing your set-up, there are quite a few things that may be wrong. It's best to remove the battery until you get this issue resolved.

 

[Andrewl]

There is a hard, raised plastic ring around the firing pin, yes, which is how I know the pin is not touching the battery, especially when locked.

The battery visibly is in perfect condition.

 

[Kaezziel]

Just because the ring is there doesn't mean that the pin can't touch the battery if the pin isn't adjusted correctly, though. You might try tightening up the pin a bit, there may still be some play in there.
That's good that the battery appears fine. That means that the problem is in the mod somewhere, and that shouldn't be too difficult to find. It could be a burr or a small bit of wire that is floating around and completing the circuit for you. I would recommend taking the mod completely apart (break down each piece, including the entire firing button assembly) and cleaning everything really well. Put it back together and see if your problem disappears. Again, if it continues to self-fire do not continue to use it.

 

[Andrewl]

Just because the ring is there doesn't mean that the pin can't touch the battery if the pin isn't adjusted correctly, though. You might try tightening up the pin a bit, there may still be some play in there.
That's good that the battery appears fine. That means that the problem is in the mod somewhere, and that shouldn't be too difficult to find. It could be a burr or a small bit of wire that is floating around and completing the circuit for you. I would recommend taking the mod completely apart (break down each piece, including the entire firing button assembly) and cleaning everything really well. Put it back together and see if your problem disappears. Again, if it continues to self-fire do not continue to use it.

Cheers, will give it a good going over later.
Sadly the website I bought the battery from, Grey Haze, is convinced the battery is not faulty but don't explain why, and don't seem willing to send a replacement despite having a 28 day warranty. :/

 

[Kaezziel]

No worries...
As I said earlier, I doubt there is anything wrong with the battery, personally. Typical battery problems are that they won't hold or take a charge. The battery itself cannot complete the circuit in the mod to cause it to fire.
I hope that giving the mod a good and thorough cleaning will solve your problem. If not, come back and tell us of your progress and we'll see if we can help you de-bug it further!

 

[Wraith504]

Is it telescoped to the correct size for a 18650 battery?

 

[Wraith504]

Is your battery installed correctly?