its more about checking for loose connections and short circuits (things that make your battery go boom)
if you don't know the ohms of the coil you could draw too much power from the battery and the battery could explode.
so you need to know the max amp rating for your battery and never use more than half of that rating
example
1.2 ohm coil 4.2 volt battery means you drawing 3.5 amps from the battery
if the battery has a 10 amp rating then its not likely to explode from over discharge.
most battery's / rigs (that use only one battery at a time) are going to be 4.2 volts.
so using this calculator
Ohm's Law Calculator
you type in voltage of your battery, and the ohms of the coil you made (after you check it with your meter) and it will tell you amps.
if it says the amps is more than HALF of the amp limit of your battery you need pull out the coil and add another wrap to two to the coil.
when checking the ohms with your meter, you want to see a constant reading. it should jump around a bit for a second then hold steady (holding steady for more than 5 seconds). if the reading keeps jumping around you have an intermittent short or lose connection. if the coil reading is steady but very low then you have a sort like coils touching the posts or other coils.
if your not careful your battery could "vent" it means hot gases and fire could come shooting out... (not joking)
IMR chemistry are much safer than standard protected lithium. because IMR will vent hot gas and not a fireball.
what mod and batteries are you using?
