(Day 3 and 4 of 4) Mini-Ramble: Dallas! TI! Batteries!

Oh wow, already a week since the event finished; I need to get posts written up more often!

Anyway, the last 2 days of the event were pretty much information seminars with three separate ‘tracks’ with one of them being all about fuel gauges (you can guess which one I went to 🙂 ). They discussed the reasons that fuel gauging is so important (and why “just measure the voltage” usually isn’t good enough), and also explained why your battery life just plummets after a few hundred cycles or 20% wear.

One of the main fuel gauge guys at TI gave me an evaluation board for their latest-and-greatest fuel gauge, the bq40z50. This gauge is able to handle 1-4 cells in series, which means that you can now pack a laptop battery’s smarts into a battery meant for a smartphone or tablet.

I’d post more but these few posts were “Mini-Rambles” after all. I may post a few pictures later on.

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