Please DO NOT USE any LiIon battery that is beginning to swell !!!? Recycle it.Once a LiIon battery is starting to swell, its internal chemistry is unstable.
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On Wednesday, November 20, 2019, 10:27:54 a.m. GMT-5, KV5R <kv5r@...> wrote:
I figured it out! After earlier posting, I remembered I have a wall charger for those Galaxy S3 batteries; it uses contacts 1 & 3.
And then reading the label on one of them, remembered the NFC antenna. Verified with the bench DMM.
With the battery oriented contacts up and left, and calling leftmost contact #1:
1. DC +
2. NFC loop antenna (2.4k-ohms to #3, either polarity)
3. DC - , and other end of NFC loop antenna
4. n/c (resistance infinite, either polarity)
So I'll take the oldest one (just beginning to swell) and try to solder #30 wires, hopefully without melting the plastic case too much...
Gotta order some 2.5mm standoffs first.
Thanks Guys,
73, --kv5r
