No reverse polarity protection

[upipu]

There is no reverse polarity protection, if you put in your 18650 battery the wrong way the device will smoke and will be gone. Simple solution: solder a shottky diode into the track which leads from + to switch and cut the trace in the middle. Diode like: 1N5817

[vonmillhausen]

Hi @upipu! Thanks for that - I'm not sure when I'll next be updating the document, but next time I do I'll add a note about that to the battery section (I remember there was at least one person on the SF2000 Discord last year who killed their froggy by putting the battery in the wrong way around 😢). I'll leave this issue open until whatever update includes the note gets posted 👍

[NuclearPhoenixx]

It's wild that such an essential feature is not built into the device. I mean I get it that they cheaped out on all kinds of battery protection with essentially only some bare charging protections being implemented AFAIK. But saving like 0.3 cents on a diode that reduces the risk of a fire is crazy. So definitely thanks for the note!