JST: the little white connectors on lipo batteries and other small parts; two and three-pins are common; multiple sizes.
The LIPO battery size PN is ___
Notes on lots of other common connectors
https://learn.sparkfun.com/tutorials/connector-basics/all?print=1
Just discovered "Mobile" connectors; an in-line system that is unscrewable, sealed. Comes in 2,3 - 7 pins at least.
Used in radio gear. Found at HSC Electronic Supply in Santa Clara (halted.com).
