Blaupunkt Voss bluetooth speaker base extension

thingiverse

I'm repositioning myself to focus on the task at hand - redesigning this entire setup. My Voss was suffering from a faulty BMS (battery management system), which led to a cell not recharging properly and ultimately resulting in battery failure. I attempted to repair it by soldering new cells, but that didn't work out. Instead, I decided to create an extension that houses a 6-cell NIMH RC car battery. This extension features built-in supports, which I achieved by using a sacrificial layer under the screw holes of the standoffs. To clear up the thread, I carefully used a 5.5mm drill bit by hand. I discovered an old power adapter and repurposed it to connect to a Deans plug, which I soldered onto the battery lead. The male end plugs into the cutout holder, while the DC power jack connects to the back of the Bluetooth speaker, simulating a direct wall plug connection. This setup powers up the speaker successfully, and I'm utilizing a 4200mAh battery that's still above its nominal 7.2V (at 7.7V) after six hours. Printed in black PLA, this extension looks acceptable, despite being heavy due to the battery's weight. It adds substantial heft but gets the job done. This is the largest thing I've printed so far, and it barely fits on my bed!