Redstone energy cell no config menu

[Spixium]

My redstone energy cell does not have a configuration menu when I right-click on it and all of its sides appear to be set to off. It charges while it's hooked up to a combustion engine but not when it's hooked up to an advanced solar generator or a bio generator. And it won't power anything. Is this a bug or am I doing something wrong? How do I open the config menu and get it to be charged by other generators?