Tech news tagged ‘Lithium ion’

Li-ion chargers, searching for a good one

I have a pair of rechargeable CR123 lithium ion cells for my rather fine Zebralight head torch. An older version of this.

If you want a wide even beam head torch with no appreciable ‘hot spot’, this is a good one – great for seeing around inside a building or tent…

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An Engineer in Wonderland – You want magnetics how fast?

See all ‘Engineer In Wonderland’ posts TDK knows a lot about magnetics, having been set up in 1935 as the world’s first commercial producer of the stuff. A few years ago, I can remember standing by a TDK engineer when he heard that a 2 or 3MHz (I can…

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