Neutronium95
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- Joined
- Jan 17, 2010
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When I got started with electronic deployment, I got a Stratologger, and then got some cheap 2S lipos to power it. They came with a JST PH 2.0 connector, which worked fine with the charger I bought. Later on I got a Featherweight GPS and some Altus Metrum EasyMinis. Both of those units come with, or are intended to use 1S lipo batteries with JST PH 2.0 connectors. There's just one slight wrinkle. They have the opposite polarity!!! Apparently the hobby RC community, and the hobby electronics community both use batteries with the same connector, just wired opposite each other. Apparently the Featherweight and Altus Metrum electronics were designed around the batteries from Sparkfun, while most of the batteries and chargers on the market with that connector are wired with the opposite polarity. It's completely ridiculous, and I don't think that there's much that can be done about it, beyond being paranoid about polarity when wiring up avionics.