Design

This design requires the battery can supply a higher current.  For this design we will be using 2 100Ah LiFePO4 batteries.



Fuse Panel (12 Circuit)



FuseSizeUsage
1BED
LED Light (switched off)
2BUNK
LED Light (switched off)
3BUNK PWR
USB Power
4FAN
Fantastic Fan
5PANEL
Under Sink Light
6SINK
Sink Lights (includes remote)
7TV/OUT

2 - 12v DC Sockets

Outdoor Light

8USB
2 USB Ports in 120v Outlet
Inputs
9DC Power In15APower from AC/DC Power Supply
10Solar In25APower from Solar Panel Controller
11Vehicle In7.5APower from Vehicle DC-DC Converter
12Battery In60APower from battery


Components

Solar Charge Controller

See Renogy Rover 30A MPPT Charge Controller

Solar Panel

We have a flexible 100 watt solar panel from AllPower.

Battery

We will be using 2 DIY 100 Ah LiFePO4 Batteries.


Specification

Value

Capacity100 Ah
Nominal Voltage (4 x 3.2v)12.8v
Max Voltage (4 x 3.6v)14.4v
Min Voltage (4 x 2.5v)10v
Cell Configuration4S
Max Current Output100A


Battery Charger

WAOUKS 14.6V 20A Charger 4 Series 12V LiFepo4 Battery Charger Smart Charger Aluminum Case with Cooling Fan for 4S 12V 12.8V LiFepo4 Battery Pack.




Specifications:

Product Name: 14.6V 20A Charger

Model: WA360-14620B

Dimensions: 180x90x63mm

Product Weight: 1.4 kg

Color/Material: Black/Aluminum Case

Suitable for Battery type: 4S 12V 12.8V 14.4V LiFepo4 Battery Pack

AC Input: 100~120Vac, 50/60Hz

Output Voltage: 14.6 Volt

Output Current: 20 Amp

Battery Protection: SCP,OVP,OCP,OTP

Charging Mode: Constant current - Constant Voltage - Trickle: Three-stage intelligent charging

Charging efficiency: ≥90%

Working temperature: -5 ℃ ~ +40 ℃

Storage temperature: -40 ℃ ~ +70 ℃

AC power cord, DC connector can be customized.


Operating Instruction

1. Before charging, please connect the DC terminal to battery first, and then connect the AC terminal.

2. After charging complete, unplug the AC terminal firstly, and then unplug the DC terminal.

3. No charging or after charging complete, be sure to unplug the DC terminal and AC terminal.


LED Indicator:

LED 1 red: Power on.

LED 2 red: Battery being charged.

LED 2 Flash: Battery will be charged completely soon.

LED 2 green: Battery has been charged completely.


DC-DC Converter


The DC-DC Step down converter will be used to charge the battery while driving. The output will be set to a maximum of 14.4v.

https://www.amazon.ca/DROK-Waterproof-Synchronous-Converter-Adjustable/dp/B00CNXLDCQ/ref=pd_rhf_se_p_img_1?_encoding=UTF8&psc=1&refRID=DGQY111E6P888BR14H0A


Capacity Meter (No Longer Used)

AiLi Battery Capacity Meter

Renogy Pure Sine Wave Inverter


References

ReferenceURL
Battery Chargershttps://wiki.jmehan.com/display/KNOW/Battery+Chargers
IMAX B6https://www.skyrc.com/iMAX_B6_Charger
IMAX B6 Manualhttp://www.ittgroup.ee/files/IMAX_B6_manual.pdf
Solar Chargerhttps://iallpowers.com/collections/solar-controller/products/solar-controller
Solar Charger Manual
Capacity Meter
Renogy 3000W Pure Sine Wave Inverter
Mastercraft Inverter User Manual