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Show HN: 32V TENS device from built from scratch under $100

dmitrygr

> down to ~3.0V (discharged).

That is NOT how one uses lithium batteries one foe snot want to go boom. Consider 3.6V as empty. Discharging them down to 3.0 can cause them to go boom when recharged...

cenamus

Of course you can go down there? That's literally the lower limit of design voltage?

Below 2,5V is usually when you don't wanna use them anymore

dmitrygr

only if you want them to lose capacity fast and become spicy pillows in your lifetime