a motorcycle with a luggage case on the back of it

E-Scooter Solar Storage & Bluetooth Speaker Box

So I had a Harbor Freight 3200 Apache case lying around used for misc tools, but wasn’t getting much action. I have been riding my scooter like crazy because I love charging it and going on little errands around town. The back of the scooter has a little luggage area so I had the idea to mount the case for extra storage.


Well, I had a few things in mind once I set that case on the back. What if I put some speakers in it? How about a solar panel on top? Let’s add safety and put a few LED marker lights on for better visibility and safety while riding.


This look and the features was an instant sell, I posted the scooter for sale and within a day or two it sold!!



a motorcycle with a box on the back seat

(The Idea)


Let’s see how cool we can make this!

Parts Used in this Project

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Apache 3800 Waterproof Storage Case

a person holding up a portable battery charger

Viking 12v Jump start Battery (12-15v dc input)

two drill bits with different sizes

Warrior Step Bit Set

dc dc dc dc dc dc dc dc dc dc

50 watt Bluetooth Amplifier Board

a picture of a speaker on a phone screen

2” Project Speaker

a black car charger with a blue plug attached to it

USB 12v dual output panel mount jack

a solar panel with a wire attached to it

10watt 12v Solar Panel

a product image with a red button and a red wire

12v LED ring lit latching switch

a remote control with two wires and a key chain

Wireless 12v relay board

a set of red and yellow led lights on a white background

LED 12v Red Amber Marker Lights

a product image of a black holder for a laptop

Sweet Folding cup holder

Step 1: remove handle on Apache case, paint case using grey plastic safe paint let fully dry - then paint with aluminum metallic paint.


Step 2: cut holes size of speaker to mount from back side (used epoxy to mount) optional grill can be added for speaker look and safety.


Step 3: cut hole for usb Charger and lighted switch where you want it located. (Step Bit kit works great!!)


Step 4: Mount 10w Solar panel on top lid


Step 5: Wire all electrical! Add Velcro to the Power pack inside the case - wire the power through the wireless relay and to amp power. The power to the marker lights is handled by the push switch post relay. I used the USB port on the side as an internal bus bar to crimp to so the 12v output from the jump pack powers the external USB jacks and marker lights when activated.


Wireless switch can turn on speakers and lights as you approach the scooter and push play on phone to get the tunes bumping without ever opening the case.


Solar panel can charge the power pack / other jump starters can be used as long as it has 12v output and a 12-15v charge port (or 12v to 5v usb Charger can be added in line from panel to jump pack for usb charging)


Lots of extra room in case for tools, snacks, groceries or whatever - plus it’s watertight and lockable!!!


Talk about coolness factor of 10+ 😎

a blue scooter parked in a parking lot