The Aliexpress deliveries arrived on Christmas Eve. One contained the jig for milling timber and the other some cable and a circuit breaker for the trailer.
The weather forecast for Christmas Day is very hot which meant I needed to complete any work in the ‘man cave’ early.
The jig was well packaged
After assembling the jig I fitted the router to the sled and then installed the milling bit purchased earlier. Next, I used the router and jig to mill both sides of the offcut from my earlier cutting board project
Above: Before starting the milling
Above: After milling both surfaces
The jig didn’t have sufficient width to mill the surface of the timber in one pass. This was caused by the width of the router sled. If I had used the router without the sled then the milling would be achieved in one pass. I might look at fitting the jig with longer rails which would enable me to mill wider surfaces. The surface on both sides was flattened so the jig/router/sled/bit combination works.
The second package contained cable and a 80A 12V circuit breaker.
My 2025 combined birthday/Christmas present was a second 12V 120Ah lithium battery for the camper trailer and I want to parallel connect the two batteries to give 240Ah of capacity.
There is a right and wrong way to parallel connect two batteries. Do it like the left side in the diagram below and you risk damaging or reducing the capacity of the batteries as more power may be taken from the lower battery causing an imbalance. The right side wiring diagram is better.
I’ve made a battery box for the second battery from scrap plywood and must now fit the box and wire in the battery. The 80A circuit breaker will be fitted into the red cable between the two batteries. This will enable me to isolate the 2nd battery and protect it against overload/fault.
These next two photos show the completed wiring
2nd Battery Box fitted behind the timber partition
A – Isolation switch for the first battery
B – DC-DC Charger and solar controller
C – Negative cable on the first battery now goes to the second battery and new cable goes from the second battery to the shunt
I’m leaving the two batteries connected together for 24 hours without being on charge or on load. This should allow the state of charge of the two batteries to balance (equalize). I’ll then connect the solar panel and fully charge both batteries. I’ll also need to change the settings in the Junctek Battery Monitor from 120Ah to 240Ah.
Gosh it’s hot outside. The thermometer is displaying 41°C. The solar array had recharged the house battery by 10AM and is now producing 7.1kW. 6.08kW is being self-consumed. We have two air conditioners running along with the dishwasher. Another 1kW is being exported to the Grid. I’m so pleased we replaced the ducted evaporative air conditioning system with three split refrigerated systems. Evaporative systems are only capable of reducing the ambient temperature by 13° which means inside the house it would be 28° rather than the current 20°.
Brian I’m prepared to send you 15°. Please provide Harnser’s postal address
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