Not sure if this has been posted , between the iffy reception I get and the inexperience using the search button I'm sure I coulda missed it lol , but ran across this website that spells out popular batteries and the safe limits they can be run at, thought I'd share .. Disclaimer lol ** regardless of what tool your using you should do the math yourself , know what your using, and if your batteries are authentic, a multimeter is 10$ at homedepot , a small investment for your face , 100$ rig, and your ease of mind *** i use this strictly as a resource, just like I do with YouTube , ohms calculators , this forum , and advice from my local shop , that's all this is meant to be. I wouldn't trust any single one of those resources, only the collective knowledge you get from exhausting research from all of them. ..
http://www.kritikalmass.net/battery-calculator/index.php
http://www.kritikalmass.net/battery-calculator/index.php