Lithium Confusion

Itinerant1 wrote:
@pianotuna I finally installed the micro-air 364 on to my Carrier Air V 15k air conditioner. I'm in campground hooked up to 50a service, completed the 5 learning cycles. It was interesting to watch the me-arc display in the ac input screen, the air conditioner fan would run for a couple minutes then I could see 3-4a load coming in for 60 +/- seconds then quickly climb to roughly 18a then settle at 14a.

Here are the test that I did. While still plugged into the pedestal I turned the load share down 15a, 10a, 5a and turning the air conditioner off for a couple minutes between each lowering and at no time did the ac unit stumble or did a red fault light show on the me-arc.

Then I disconnected the the power from the pedestal and connected it to the eu2200i generator setting the load support to 15a and 10a, same results no red fault light on the me-arc and no "overload" or stumble on the generator. Also I'm in tree cover/ overcast so little to no solar was helping.

I didn't try the ac unit on just batteries but I'll bet there shouldn't be a problem especially if solar is contributing. In a couple weeks when I'm back at boondocking I'll update those results.

Maybe with the lfp batteries that's the difference that I'm not getting the fault lights on the hybrid inverter or stumble in the ac unit or generator. ;)

Countinous from previous post,

Tried the 15k A/C unit from just batteries today to see if the fault light would show on the Me-Arc display from the hybrid inverter (seeing if I would have the same issue that Pianotuna said he had). No fault light and no stumble in the A/C at anytime.

99% SOC (13.3v before turning the A/C on)

From the me-arc display:
Inverter AC output 118v/ 60hz

Overcast/ pine forest (no visible sun)
Solar 180.7 watts
PV volts 35.7vdc
Batteries 13.1vdc (while A/C running)
8a charging from solar after turning A/C off

Initially turning it on the fan started and after 30 seconds the compressor started to spool up slowly, I could see the amps slowly climbing and max somewhere in the 190a range before settling down to 94a. So if I just use my minimum loads and the sun is shinning the solar panels will cover roughly 60-75a of the A/C load, balance from batteries would be 30ah +/- (6% SoC be depleted per hour)

Good to know now that during a moving day and taking a break for lunch that the air conditioner can be used from the batteries with no issues and not worry about dragging the eu2200i out.

I'll use my infrared laser thermometer to check connection and wires next time after some extended use.