Well, here I go! I have a 1500mah 5 cell battery from no BS batteries. It has an 7.5 cell impedence as well. I am currently running this battery for the ignition of a gas plane. Here is my question. The ignition has a constant draw of 350mah from the time you turn it on. This is a Revmaster igntion. From the info I just gave you guys, how long do you guys think I am able to run the ignition on that battery safely. About how many flights will I get?