In-tube battery tree

摘要: Apparatus and associated methods relate to a lighted tree formed from trunk section retaining battery holder, branches extending the section, light source disposed emit branch electrically connected base, adapted mechanically support connect holder an energy external section. In illustrative example, may be LED-illuminated optic fiber. some embodiments, photovoltaic collector or multifrequency harvester. designs, adaptively maintain electrical polarity independent of orientation. various implementations, holders stacked rotated one another configure parallel series batteries. Various embodiments advantageously retain batteries in rotationally interconnected sections for common charging, single in-tube smaller trees.