DIY MOD - I broke it.....

So, I got a non regulated mod, dual batteries and was working like a dream. I must say this was built for me. So DIY mods are like spiders webs and witchcraft . I don't know what happened. But to cut a long story short... I inserted one battery the opposite way. Yep.. Doh. (so i really do know what happened)

I freaked out and chucked it at the floor whilst it was smoking, the batteries luckily sprung out and low and behold. Its dead.

So where do I go from here? Any advice.

The batteries work but surely they are damaged?,

but the mod don't fire, and so it shouldn't.

Can I bring it back to life. Hubby has soldering skills but, to be honest. Where do I start?

Kindest regards in advance.

Feel silly posting this but i'm gutted about the mod, as it was super cool.

FMind :*(

 

Hey V,
give me a sec and ill get some photos, it was 3D printed by a member here. brb

**Updated**

this is a photo (non original but same print), I cant find the mod to hand at the mo. But looks identical (with sliding door) was printed by a fellow member here, and was also featured as a DIY build by said member on this forum. Yet I cannot find it. Will get the mod in the morning and take some photos along with the damage. Thanks again! FMind.

 

**Updated**

The batteries will be damaged so do not use them. damaged batteries are a potential bomb.
Get yourself a regulated mod.

 

Guessing you fried the MOSFET chip, hard to say for sure as no picture of the internals.

**Updated**

I have attached a wiring diagram of a basic series box with a MOSFET, which is a common design (8.4v). Yours could be parallel which would be 4.2v. MOSFET chip would be the same with either battery setup.

Also here is a link to a MOSFET already partially wired up with a resister in place for ease: Mosfet Board