What you need to know for reliable power in the field
Published June 1, 2006
If you’ve ever wondered how the flashlight got its name, here’s the secret. When flashlights were first invented more than 100 years ago, the batteries that powered them were weak and the light lasted for very short periods of time. When turned off, the chemistry in the cells rejuvenated, and the batteries recovered a portion of their power. Then they were ready to flash again. Sounds puny, but considering that the height of portable lighting technology up to that point was a flaming torch, this was a real technological breakthrough. Thankfully, mobile power has come a long way since then.
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