A project log for Heartbeat Logger
A portable device that logs a snippet of your heart at the push of a button.
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I had the exact same problems with those battery holders with my super small loggers and I bought the same Linx parts to solve it :)Problem with the solderpads for battery contacts might be higher resistance due to oxidation over time. I'd rather use three small "dots" arranged in a triangle to make the negative (PCB side) contact to get the battery/contacts situation statically indeterminate.
Problem with two longer pads could be a height difference due to more or less solder.
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I like your idea of the triangle arrangement, there's a high probability I'll implement it :-) Neat work with your beehive logger, by the way!
Yes, delete it
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