t8kiteasy has a good point that I've seen on some batteries, depending on brand, some of them literally have thin metal plating over plastic, which once that plating wears through to the plastic, you get inconsistent/no firing. It's usually on protected batteries that you see that metal plated plastic, but maybe it's on some IMR brands too that I'm not aware of. Something to check for and easy to test, just replace with a new battery and see if it cures it!
Oh it definitely cured the problem when I switched out for a new battery.I use the Efest Hybrid 2250Mah batteries in my ELA along with the Regular efest 2000mah and it happens with all of them.Maybe the Efest batts have some QC issues????
