New information =) I got a 6 cell pack, IB 3800s charged all the way to 4785mah with my new 4-step!

800 3300 3800 4800
2.5 6.5 5.5 2.5

Try it out! The temperature stays fairly cool, keep a fan on them though just in case because during step 2, the temperatures may rise. The punch on the cells after this charge program is amazing.