DIY boombox

grabcad

The primary model file is titled "completFinal." My objective is to design a self-contained and portable boombox. As it's my first attempt, suggestions for improvement are appreciated. This boombox will feature: 1. Solar charging capabilities 2. A powerful audio system with 50 watts 3. Four 12V 7.2Ah batteries (totaling 12V 28.8Ah) Future updates may include: 1. A 12-230V power inverter 2. A 230V battery charger and a 12V PSU 3. Dual USB ports to charge smartphones, iPods, etc. Please share your thoughts!