[member="Jan Valdum"], [member="Seanna Vel"],
Taking a DE-10 and converting it with a Lightsaber crystal so it uses almost no energy to fire a blaster bolt. Acts like a lightsaber creating an electrostatic field over a bolt of plasma that is fired. In the process of the bolt leaving the barrel, magnetic charges on the barrel then gather the negative charge left from the bolt and convert that to energy to be used again and again.
Thus, the "energy cell" is a housing for the crystal with the components around it, and it does not need to be removed unless for cleaning.