Monthly Archives: April 2015

Thoughts on battery testing

Batteries are handy things and these new-fangled 🙂 Li-ion ones seem to be fairly useful. I dismantled another unwanted netbook (aka “craptop”) power pack yesterday and acquired another 6 x 18650 cells. Some of these don’t seem to be up … Continue reading

Posted in Uncategorized | Leave a comment

dummyLoad – first light…

Last day off for a while so I’ve mostly been “chilling” whilst the dummy load and a little bit of firmware did the hard work. The results I have are interesting but I need more data to draw any conclusions. … Continue reading

Posted in Uncategorized | Leave a comment

Dummy load – final hardware steps…

Well I slept on the “dead bug” idea for the op amp I needed to complete my circuit. When I woke up this morning I really didn’t fancy doing that. Since arduino shields are stackable, I thought “Why not just … Continue reading

Posted in Uncategorized | Leave a comment

More on the “Constant Current Dummy Load”

Not finished yet and there’s still software to cobble together when it is. I’ve had a bit of time today and made some progress with the LCD shield – well, it’s done which counts as “some progress” in my book. … Continue reading

Posted in Uncategorized | Leave a comment

Li-ion Battery Capacity Testing

Well I’m just getting into the wonderful world of li-ion batteries – cheers Chris! The trouble is, I’m not sure where some of the older, recovered, laptop batteries I’ve acquired are at. Some of them really don’t seem to last … Continue reading

Posted in Uncategorized | 1 Comment