Tell us about yourself!
1. Is it ok to connect the 3.7v Lithium battery (like the Samsung in your photo) directly to a USB port? Isn't there supposed to be some controller for the charging, to control the voltage & current? If the battery is 3.7v and rated at 600mAh, but the USB port is 5V 2.1A, isn't the battery going to overheat?2. You posted a link for an RF controller & dimmer, can you recommend a Bluetooth controller?