The "nest" and it's loads

Chandalen wrote:
scrub: What ga wire are you using? Where is the TS-45 located? It seems the wire appears to be 12ga and the runs to the TS seem to be very long.

Is the 14.69 on the multimeter incoming from the panels or outgoing to the batteries?

Again, cant tell, but are you using the voltage sense and thermal probe options on the TS?

1. Wire gauge, for the portables, Imp 4.47 amps each, it is 8 AWG 20 feet long. The roof mounted is 10 feet of 10 AWG, Imp 7.1 amps. All wire between solar panels and CC is marine grade tinned.
2. 8 gauge between the CC and batteries about a foot, sense is used and I need to pick up the RTS. Battery jumpers are 2 awg. 8 awg marine to the load distribution panel about 3 feet there; 30 amp Blue Sea fuse and holder. 40 amp auto resetting breaker between CC and batteries.
The small wires in the pic are to a test point set up so I can measure solar panel input to CC and CC output the the camper is closed up. The load center on the left is 15 Square D QO breakers between solar panels and CC Wire there is 4 AWG. QO breakers are rated 48 volt dc and panel Voc is 21.

The CC is in the rear storage compartment above the batteries.

Voltage is CC output at the end of a boost cycle getting ready to switch to absorb.
FYI the system this morning switched from bulk to absorb at 10 AM; current was 12 amps and that is with the roof mounted panel partially shaded.

scrub: What ga wire are you using? Where is the TS-45 located? It seems the wire appears to be 12ga and the runs to the TS seem to be very long.

Is the 14.69 on the multimeter incoming from the panels or outgoing to the batteries?

Again, cant tell, but are you using the voltage sense and thermal probe options on the TS?

Here are photos of our solar set-up; one panel roof mounted and tilt-able the other 2 portable.







Some math,
280 watt array*0.77panel+CC derating/(14.5volts charging*210 AH) = 0.0708 or 7% rate of charge


Still have to replace the homemade vented box for one like on the left in middle pic.

Almot wrote:
3A furnace is nice, but 18.64 WH is if you run it only 30 minutes a day.

Otherwise - no surprises. My daily draw is about 35 AH or 440 WH a day, without furnace but with laptop.

It looks like you need a bigger battery bank.

That is worst case and 47% soc is slightly below the desired goal of 50%. With the TM's real estate is a major problem for batteries and solar.
Our normal usage drops the batteries 15% per day and with good sun the addition of the 120 watt panel has raised our roc to 7% so no for us a larger battery bank isn't needed.
As for the heater the name plate data says 16 amps but have never measured it anywhere near that.

3A furnace is nice, but 18.64 WH is if you run it only 30 minutes a day.

Otherwise - no surprises. My daily draw is about 35 AH or 440 WH a day, without furnace but with laptop.

It looks like you need a bigger battery bank.

Linky to nice looking table of measurements.

Pretty thorough, down to the "flush".:D

An energy audit is a super idea. For both A.C & D.C.

If you suspect an error down the road, a chart eliminates 99% of the guesswork.

By comparing watts-in to watts-out, then and now, diagnosing a converter "Isthu" is a piece of cake.

What he said- try a screenshot and post the pic- about the only way to get formatting.

Try taking a photo of the table and posting the picture.