The battery has a tiny terminal/connector. It seems to be very difficult to pinpoint this terminal from a larger one when buying batteries on line. The battery is a 3.7V 250 Mh. Common enough but how do I identify the particular terminal/connector when buying new batteries? The photos show the battery connected to a charger. The charger supports 2 sizes of terminals/connectors. The terminal/connector I am trying to identify is the smaller one. The advertising blurb for the charger says: 1S LiPo Battery USB Charger 3.7V/4.20V 6 Channel 1S LiPo Charger Tiny Whoop Blade Inductrix Micro JST 1.25 JST-PH 2.0 mCX mCPX Connectors This leaves me none the wiser. Can anyone advise?