Back What's new

My battery box

My battery box

Hardware Info

Battery Brand:    Power Queen
Battery Model:    LiFePo4 12.8V
Deep Cycle:    Yes
Amp Hour:   50 Ah
Watt Hour:   650 Wh
Number of power ports:    7+
Red light functions:    Yes
I purchased a Camco 55373 Large Battery Box from Amazon along with the power ports, volt meter and switches (main power and the lights). The LED lights were sourced at a local automotive parts store.

I recently had to replace the battery (AGM) that was over 4 years old as the run time was getting short on it. I purchased a new Power Queen LiFeP04 50Ah (640Wh) battery from Amazon. This battery is about 1/2 the weight of the old battery and provides 14Ah more capacity. It cost more than an AGM or gel battery, but since I also carry the rig in the RV with us when we go out, every pound saved means either more water or food in the trailer for when we are boondocking.

The Camco box is equipped with two switches. One is a master power switch that activates power for the outlets and any other attached devices. This switch also has a red LED indicator to prevent impacting night vision. The volt meter is also a red LED and mounted to the front of the box to be easily viewable but not in direct line of sight.
Inside the box the master power switch goes to a 8 way blade fuse block holder which then distributes power to the various outlets and devices and each has its own fuse. There is also a master fuse between the switch and the battery positive terminal of the fuse block (can't be too careful).
I also added 4 5v USB female ports to allow to use any USB-C or older powered devices I may need to attach to

USB Power Adapaters.JPG

as well as 4 12v adapter plugs (the ones in the original image have been replaced by non-switched ones that have no LED illumination when actived that I obtained at the local WalMart in the automotive area).

External USB & 12v plugs.JPG

The rig also has two red LED lights controlled by a push button to allow illumination around the area of the power box for night use.

I will be posting better images of the internal wiring shortly after I clean it up a bit.

Internal Wiring on box top.JPG

Additional Info

Can configure as many/few power ports as what you need
Uses an easily replaceable battery with no having to buy a new unit
Usually cheaper than using one of the pre-manufactured power supply boxes
Can custom fit what size/style battery you want to use
You do need to be somewhat familiar with 12 volt electrical systems.
Sourcing the correct components can be rather problematic.
Requires some skill at using hand tools.

Power information

Added by
Last update

More from Tracy