its the 2s2p Im a newbie maybe I should have bought it, but I did some guy had it used it 5x and sold it to me 100 shipped. I hear so many horror stories, but hell mind as well give it a run gotta buy another one though.
not a biggie on the balancing, i've run my 4 2s packs for approx 30 charges and a few dis, incredible power and run times, true lipo's are a bit tempermental so never charge in a vehicle and always charge on a piece of ceramic tile and of course never leave unattedned, enjoy the new power