It says "LS 18650 5300mAh 3.7v li-ion" and the tanks just stop working, I'll go to fire it and it does nothing, When I try the tanks with other batteries they still no longer work.
I have no doubt that the tanks are (perhaps only temporarily) not working. I also have no doubt that you've got your hands on a 5000+ mAh battery.
However, I'm 100% certain that your battery should not be used in conjunction with a mech mod, even at the relatively low current drain incurred with stock coils.
They are almost certainly ICR batteries, which are not safe chemistry like IMR/INR/hybrid Sony VTCn, LG HE2, Samsung 25R, and so forth.
ICR batteries go boom when stressed, quite possibly turning your mod into a literal pipe bomb. Safer chemistry batteries are far less likely to do something like this, but are not completely risk-free in any mod, let alone a mechanical mod.
Since you're experiencing issues with your tank not working, you're almost certainly having some kind of connection issue, which seems like a fantastic way to introduce a very dangerous short circuit.
Please read the links provided by Susan, and put the mech down until you are able to figure out what could be going wrong.