Part 6/8:
Battery-operated lights face a precarious future, as batteries gradually lose their charge over time. Despite advertising claims of long-lasting batteries, most begin to self-discharge within a decade or two.
Conversely, solar-powered systems present a unique case. Many off-the-grid solar setups exist around the world—ranging from weather stations to emergency call boxes. These systems are designed for longevity and can endure as long as the panels and their electronic components remain functional. Properly maintained solar panels, especially in arid environments, could potentially last up to a century or longer, shielded from dust and wear.