I would like to stack some batteries in a mechanical mod to run some hex and octo coil setups. I can probably get the ohms to around 0.4 which is fairly close to 20 amps at 8.4 volts. I can make due with even 15 amps i suppose. But does anyone know any 18350s that can handle that kind of load? My single orbtronic 18650 just isnt giving enough juice...