HYPERION EOS0610I DUO II-DUAL PORT and My new PC Power Supply MOD. Questions!

HI Guys, I've got 2 venom 2s1p 5000mah 20c's, I charge them with a onyx by duratrax, seems to charge them great, nice and balanced.but there is no balance plug on the charger, It balances w/o plugging the batts bal plug in. I always check them w/ my three different bal boards "Blinky,Smartbalancer,and AEORC celDaig X6" I am gettin close to completing my MMM 3905 Revo conversion, round 2 and sprung for a couple Hyperion 4s paks. the balance plug is diff? the Hyperion chargers show the bal plug plugged in... Im very confused. please tell me I dont need a new charger too.