I present you with a Dewalt Power Box that I'm using for ice fishing.

The Dewalt Battery mount and stress relief was sourced from https://www.thingiverse.com/thing:4812733

Parts list:
3 each Eagle Eye LED lights: https://www.amazon.com/dp/B00MVMRS6O/?coliid=I1YX6SUD0MZ2GA&colid=1C1E9TNFXI8T5&psc=1&ref_=lv_ov_lig_dp_it

1 each Buck Converter to reduce 20vdc to 12vdc for LED lights
https://www.amazon.com/dp/B01MQGMOKI/?coliid=IIGMU8C6GG4XJ&colid=1C1E9TNFXI8T5&psc=1&ref_=lv_ov_lig_dp_it

1 each Digital Low Voltage Protector to protect Dewalt Battery (set to 15.3 vdc)
https://www.amazon.com/dp/B07929Y5SZ/?coliid=I3HRFETUK6U1CR&colid=1C1E9TNFXI8T5&psc=1&ref_=lv_ov_lig_dp_it

5 each lighted toggle switches
https://www.amazon.com/dp/B08Q3WJW8Q/?coliid=I2HDTKQKMLJ50M&colid=1C1E9TNFXI8T5&psc=1&ref_=lv_ov_lig_dp_it

2 each DC power socket
https://www.amazon.com/dp/B08SJM2G52/?coliid=IZZB1VAVBQWPG&colid=1C1E9TNFXI8T5&psc=1&ref_=lv_ov_lig_dp_it

1 each USB socket (or similar)
https://www.amazon.com/dp/B08XWZRTT8/?coliid=I3H469RRCP5NOP&colid=1C1E9TNFXI8T5&psc=1&ref_=lv_ov_lig_dp_it

2 each inline fuse holders (USB input and battery output to low voltage disconnect)
https://www.amazon.com/dp/B07FT7J2CS/?coliid=I1YZAMASV0TDNB&colid=1C1E9TNFXI8T5&ref_=lv_ov_lig_dp_it&th=1

Consumables:
16 AWG black wire
16 AWG red wire
5 amp fuse (2)
male spade connector (2 for dewalt battery)
female spade connector (lots of them)
solder
4 M2x8mm screws
1 M3x6mm screw

Printed with GST3D Black PLA+ at 215C nozzle, 65C bed, 30% infill, and tree supports. Print box face down on bed for best results.

To assemble:

Insert all the switches, the USB socket, lights, and DC sockets
solder + (inline fuse) and - wires to Low Voltage protector (input and output)
Solder LVP output to buck converter input
solder + and - wires to buck converter output and adjust output to 13vdc
Crimp 2 male spade connectors on + and - wires on LVP input, and insert in appropriate slot of battery base
Crimp female spade connector to + (red) wire of buck convert output and set to middle post of Master Power switch
Start cutting red (+) wire in 2" pieces, strip ends, and start a "daisy" chain" from the master power output to the last switch
Cut black (-) wire in 2" pieces, strip ends, and start a daisy chain through each switch, then the negative of each accessory (lights, usb, etc)
Once everything is wired, install the bottom (fish down) and use M2x8mm fasteners.

Use a small M3 screw to hold the stress relief to the battery 'bottom' to keep the connectors from popping out

A Dewalt 2AH battery fits very easily, but a 5AH or larger is a tight fit.

I probably missed some steps, so ask away in the comments.

Dewalt Power Station.stl

Dewalt power station stress relief.stl

The cheap plastic Pulley Wheel broke on my Menards Kayak Hoist.  This will print as a direct replacement, using a 608ZZ bearing (press fit) and a 5/16" by 2" bolt.

Printed on a CR6SE, using GST3D PLA+ at 100% infill with a .4mm nozzle and 0.2mm layer height

Kayak Hoist Pulley Wheel

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Dewalt Power Station.stl

Dewalt power station stress relief.stl

Kayak Hoist Pulley Wheel