I got my old mech mod out tonite and gonna clean up the coils in my dead rabbit. I haven't used it in a while so I'm a bit rusty with my math but if I did it right, my coils are at .29 ohms and I divided the 4.2 volt by .29 and got a 14amp draw on a freshly charged battery. My battery is a Samsung 40T 21700 35amp. If I'm not mistaken then, pulling 14 amps from a 35 amps battery is good to go? It's been a minute since I messed around with it.