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Super long life battery night light.

bigclivedotcom 5:01

19,091 views · 392 likes Watch on YouTube ↗

This is a very simple night light that I made while trying to find new things to do with some solar garden post lights that came with a single solar cell feeding several posts. I really just bought the set for the post lights since they were quite neat.
I used the original circuit board that holds a single LED and resistor, but added a two cell AA battery holder. The original LED was swapped for a warm white strawhat LED (wide angle domed lens) which effectively operates at around 1mA on a pair of NiMh rechargeable cells.
Due to the low current it runs 24/7 for literally months on a single charge, and even when the battery is starting to run low it still emits light but at a slowly reducing level. A quick one minute boost in a battery charger is enough to last a whole night, but a full charge sets it up for a few more months of light.

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