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)
| Fuse | Size | Usage | |
|---|---|---|---|
| 1 | BED | LED Light (switched off) | |
| 2 | BUNK | LED Light (switched off) | |
| 3 | BUNK PWR | USB Power | |
| 4 | FAN | Fantastic Fan | |
| 5 | PANEL | Under Sink Light | |
| 6 | SINK | Sink Lights (includes remote) | |
| 7 | TV/OUT | 2 - 12v DC Sockets Outdoor Light | |
| 8 | USB | 2 USB Ports in 120v Outlet | |
| Inputs | |||
| 9 | DC Power In | 15A | Power from AC/DC Power Supply |
| 10 | Solar In | 25A | Power from Solar Panel Controller |
| 11 | Vehicle In | 7.5A | Power from Vehicle DC-DC Converter |
| 12 | Battery In | 60A | Power from battery |
Components
Solar Charge Controller
Model: ALLPOWERS 20A Solar Charge Controller Solar Panel Battery Intelligent Regulator-Blue
The solar charge controller is responsible for charging the battery from the solar cells.
Q: What battery type is this controller supported?
A: (1)B-01=LEAD-ACID, 12V; B-02=LITHIUM ION 3s, 3*3.7V=11.1V; B03=LIFePO4 4s, 4*3.2V=12.8V. (B01 is the default type, If you would like to to switch to another 2 types, please select it manually.)
| Battery Type | Description |
|---|---|
| b01 | Lead Acid |
| b02 | Lithium Ion 3S (11.1V) |
| b03 | LIFePO4 (12.8v) |
We will be using the b03 setting for LiFePO4 4S.
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 |
|---|---|
| Capacity | 100 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 Configuration | 4S |
| Max Current Output | 100A |
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.
Capacity Meter
Inverter
Our inverter is a 3000W Motomaster modified sine wave inverter. We don't use a lot of AC and we had this laying around. This inverter in not suitable for sensitive equipment since it is not a pure sine wave inverter. At some point, I may upgrade to a pure sine wave inverter.
References
| Reference | URL |
|---|---|
| Battery Chargers | https://wiki.jmehan.com/display/KNOW/Battery+Chargers |
| IMAX B6 | https://www.skyrc.com/iMAX_B6_Charger |
| IMAX B6 Manual | http://www.ittgroup.ee/files/IMAX_B6_manual.pdf |
| Solar Charger | https://iallpowers.com/collections/solar-controller/products/solar-controller |
| Solar Charger Manual | |
| Capacity Meter | |
| Inverter User Manual |