Note: This is essentially a condensed and less convoluted version of my first post (in the Console Modding section). If you want a full description of the situation go there. My question is, given three different voltage sources (around 0.1-0.2V difference), how would you balance/equalize them so that under a load the higher voltage source won't be the only one having current drawn from it. Setup uses three separate rechargeable batteries, but diodes prevent voltages from equalizing. Edit: Just for clarification, this is used in a Wii battery pack of sorts.