Bluetooth Box and dual Powerbank with Qi Wireless Charging

thingiverse

This is a Bluetooth box with two 50 mm (2") speakers built into it. It also features the goods of an powerbank so it has in my case a capacity of about 27,000mAh (9 x 18650 batteries, 3000mAh each) depending on which powerbank you sacrifice. I used one by EasyAcc with QC 3.0 and also added a QI module. Since I had a few goes at this project I have made multiple versions of the casing. The one you see in the pictures is the version with extra buttons, but none of them are being used anymore They were intended for control over the amplifier but I accidentally blew it up. And can't find it anymore. The bass quality is not really good with the amp now (the one linked below), mainly because it only gets 5V. I tried another one, which was waaaayyyy too loud so I stuck with this one. If somebody finds a better one, please get in touch. All versions have 4 3mm holes to replace the indicator leds on the pcb, but I accidentally ripped them off the board so even they aren't used here. Instead I had a go with some Lipo indicator circuits and even though they are a bit off scale I decided to stick with them. To protect the speaker membrane I used some 50 mm fan grills that look quite stylish on the wood filament. I wanted to not be stuck with a cable chaos that is soldered everywhere when I decide to work on it, so I thought to use connectors wherever I could. Sadly that makes all look a bit fuller than it really is and it gets clunkier