Abstract: A system for capturing and storing electrical energy from irregular limited reciprocal linear movement along a cylinder, such as a shock absorber of a vehicle. A linear generator with electrical coils is wound around the cylinder parallel to the movement of the cylinder or along the cylinder. The electrical current generated by the linear generator can be stored in a battery. The energy from the recoil of a large military gun can also be captured by a linear generator along the barrel of the gun and stored in the battery. A processing device can be included to control the flow of electric energy from the linear generator to the battery. The electrical current can pass through a filter and may be processed by a conditioner to limit the range of voltage generated by the linear generator.