I recently bought a new 450mah battery for powering a plane but the connector it came with is a BEC. It´s wires are smaller than other batteries. Is it ok to just solder a dean female connector to it?
It happens. I've got a couple 2s, 1000 mah batteries that have JST plugs on them. Granted, i only use them for my gliders, since they're mainly there to add weight/ballast for slope soaring; that doesn't really use much draw to power 2 servos.