Nine out of ten solar light failures trace back to a single component: the rechargeable battery. If your solar lights won’t illuminate at dusk, start by replacing the battery with a fresh NiMH or lithium-ion cell rated for solar applications. This five-minute fix resolves most problems and costs under ten dollars.
Before replacing the battery, however, perform a quick diagnostic check. Wipe the solar panel clean with a damp cloth, place the light in direct sunlight for a full day, then cover the panel completely after dark. If the LED …










