My friend lives in Florida and I wanted to make her a remote lighting system and 12VDC power supply for power outages.
Tractor supply had 14” Flambeau dry boxes on sale for 50% off and I picked up two. I took one of the boxes to Batteries Plus and found that two 20 amp hour deep cycle batteries that fit in the box with room to add outlets and an integral charger.
The build was very simple. I wired the batteries in parallel, drilled for the outlets. I put in two cigarette lighter plugs and a dual USB plug. I found the switched voltmeter on Ebay and it fit perfectly inside the case.
I had an old Black and Decker 2 amp charger that fit perfectly inside the case. Rather than opening the case to plug in the charger I found the NOCO Genius GCP1 Black 13 Amp 125V AC Port Plug on Amazon.
Next up was lighting. I found a tripod for $18.00 and a 50 watt light for $10.00 on Amazon.
The power pack was able to power the LED light for 40 hours. Below is the supply list.
https://www.batteriesplus.com/productdetails/wkdc12=20nb
http://www.ebay.com/itm/Dual-2USB-Car-Cigarette-Lighter-Socket-Splitter-12V-Charger-Power-Adapter-Outlet-/171968222241?hash=item280a1ad421
http://www.ebay.com/itm/Car-Motorcycle-LED-Digital-Display-Voltmeter-Waterproof-Meter-12V-24V-W-Switch-/131634808802?hash=item1ea60bc7e2
Badlands Expeditions 
Nicely done.
Here is a link to the a simialr charge unit which wasn’t in your materials list:
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A remote would easy to add but just unplugging the cord is easy enough. The problem with using a jump pack is you are not going to get the same amperage. This is a 40 Ah battery pack. Most jump packs are about 17 Ah.
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What would you use to charge the batteries of this fine project?
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The system has a Black & Decker charger/maintainer inside the box
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Ahh great must have missed that because it was not in the parts links. Thanks for the reply!
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Look in the comment section for a link to the charger. You can see it in the pictures the orange box.
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12v * 20 amp = 240 watts
240 watts / 50 watt light = 4.8 hours
How did you end up with a 40 hour light?
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LED
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