I'm trying to decide if I run more than 14 cells on the MGM160/7xl combo. If I go to 8 cell packs, I need to buy a different charger and invest in a couple pairs of 8 cell packs. Therefore, I have to wonder about Lipo. Can the MGM160 reliably handle 5s Lipo and/or 16 NiMH cells? Is it simply a matter of correct gearing?