[link=http://www.b-p-p.com/proddetail.php?prod=e_EOS_1210i]Hyperion ESO1210i[/link] with a [link=http://www.b-p-p.com/proddetail.php?prod=2_LBA10]Hyperion LBA10[/link] balancer for all of my Lipo pack. The EOS1210i can charge 12S lipos, 12 A123 Lion cells, or charge up to 30NIMH cells at up to 10A. I also like my MRC977 becuase it will charge two IB4200 7 cell packs at 5A each in under 1 hour for my E-Maxx.