Parts Needed To Add A Lithium Battery To An Enclosed Trailer And Charge It
Updated 12/27/2024 | Published 12/26/2024
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Question:
I have a enclosed trailer and light work with tow vehcle 4-pin wires. I want to add a 12v lithuim LiFe04 Batter to power the trailer lights and disconnect the to vehicle power. What sort of switch do I need to change the 12v powe from tow vehicle to 12v life04 batter inside the trailer? and how would I hook it up?
asked by: Omar P
Expert Reply:
Hi Omar,
Typically on an enclosed trailer the battery will either be mounted to the tongue or will mounted inside at the nose of the trailer to make connecting to a 7-way junction box easier. This can be done with a battery box on the outside of the trailer or will typically just be held in place with some wood if inside the trailer.
The lights inside the trailer can be wired to the battery, with an inline switch to turn them on/off. Your traffic light functions will all still run to the 4-way and would only receive power when you're hooked up to the tow vehicle. The battery would also need a charger which would require shore power.
To connect to shore power you'll need a power inlet, power cord, and a few other items depending on the style of charger you go with. If you don't have a large power demand a small charger like the NOCO # 329-GENIUS5 could plug into a power inlet like the NOCO # 329-GCP2 and you could then just run a normal extension cord over to your shore power.
If you're planning on running more than just some lights you'll need a larger charger like the Progressive Dynamics # PD49RR. this would typically be wired into a larger setup with a distribution panel for your AC and DC appliances. If this is the route you need to go let me know what all you're wanting to power.
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Omar P.
12/27/2024
can you give me in example on how to install an INLINE switch to turn on interior lights with a battery? I am planning on getting a 12v Lithium LiFeP04 battery and use a solar panel to charge it up, and also getting a DC to DC charger that connects to my truck to charge the battery while I am driving.