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Game Theory says if you’re going to meet a person repeatedly, be fair. But if you’re going to meet them only once, take them for all they are worth. I guess they figured you are a one-time customer who is unlikely to sue. "did commit a fraud against me... and many others." To protect yourself...

It's an inrush of current to charge the capacitor. Your battery's internal impedance probably limits this current so you then have an RC ckt. V ---R----| ...............C ................| ............ground With an ideal battery instantly connected to a capacitor, the current would be...

48vdc is phone line voltage & may give you a tingle depending on your skin resistance. It's possible nobody ever died from phone line voltage. In the US, 5 people get electrocuted each day vs. 8000 from other causes. Very good odds. :giggle: With these batteries I'd be more worried about...

The customers are the lab rats. Nobody quite knows what they will put up with today & tomorrow & that is for the OEMs to find out. BTW, there was a car that was not selling well. They changed the name of the color of the paint & sales improved. For me, a car is to get me from point A to...

And the internal resistance of each cell along with the voltage difference will tell you peak current flow when you first parallel them. 2.3v w/0.2 ohms internal resistance hooked to 3.2v w/0.1 ohms will give (3.2 - 2.3)/0.3 ohms = 3A for a while. I'd think a partly discharged batt. has a...

Nine months excess power, 3 months not enough, at some average load. How much space do you have for additional batteries? I feel a computation coming on. . .:LOL:

If a China "thing" is made to a US "Specification Control Drawing" then the US is to blame.

Lately when they call, I ask them if "they got the letter". Them: What letter? Me: the government is prosecuting you & your company for wire fraud. I'm surprised you're not in prison right now, you & your boss.

The max surge vs. steady state ratio for Grainger gens & such is 1.5:1 and yet these products sell, so I assume the startup surge contains so little energy & is so brief that most sources don't notice it.

If your load is resistive & not inductive, that switch ^ can handle more than 10ADC for many, many cycles. IIRC, the Digi-Key catalog posts # of cycles of life vs. amps vs inductive, resistive, incandescent or motor loads, so you can scale up or down your switch specs. Opening the circuit with...

IIRC 11v = zero SOC. Epever must have something in mind. The readings are within 3% of 80v, that's kind of a wide tolerance for today's meters. Check the multimeter for reading 1.56v on a new flashlight battery but it could still be off on the higher scales. What's the make & model of your meter?

This type of connection should have a contact resistance of 20 uOhms or so, you seem to have 3 milliohms, assuming it takes 10w to heat the post to your 117F. Measure the voltage across the post/clamp interface when pulling your 63A.

Latitude & season vs. irradiance https://www.pveducation.org/pvcdrom/properties-of-sunlight/calculation-of-solar-insolation Click on your latitude & your day, watch the curve change.

How many A-h is your inconvenience worth? Sitting here in a warm house with city power and sweats on, I can't say. :cautious:

115v x 1.5A = 173w, no problem. 173w/24v = 7.2A current draw, no problem. A touchy inverter or controller? Bad connection? At 7A no connection should have more than 0.2 millivolts across it, clamp to post.

And if you have a 250w, 3.7 ohm resistor & full sun, you can check a panel before install.

Yes, not getting to the root cause of this will cause it to come back later. Troubleshooting skills are transferable to other domains.

I'm out of here.

2000 kwh/yr x yr/8760 hrs. The yrs & the hrs cancel out & you get 2000/8760 kw = 228 w continuously. Our house takes 1 kw continuously [the US average] & houses in the NE take 4x this.

If the cross sectional area is close & the material is the same, I can't imagine a problem, but I am not up on the fine points of balancing. BTW, iron has 6x the resistance of copper IIRC.

I think our calls come from Pakistan. I ask what US city they're in & they tell me. Then I ask them what county is that city in & they hang up. Sometimes I tell them that I'll send them women if they send me money, sometimes vice versa. Our phone company could block 90% of these calls, but...

Idling, it appears to pull 12w. Find specs on several other inverters to find out if this value is typical, or larger than average.

#16 is 4 ohms/1000’ so 80’ is a 160’ loop distance is 0.64 ohms. 5% of 12vdc is 0.6vdc so you could pass 0.6v/0.64 = 0.9A, 11w. 5% of 48vdc is 2.4vdc so you could pass 2.4v/0.64 = 3.8A, 180w. 5% of 120vac is 6vac so you could pass 6v/0.64 = 9.4A, 1100w. Plug in your own voltages & currents &...

Solar =>...............................|renogy| veh. batt + series relay <=> |renogy| => load + storage batt. I'd have a SPST relay with 80A contacts that auto opens if the veh. batt. voltage drops too low. A voltage comparator drives the relay coil. The comparator ckt operates from a 5v...

For a series pack it should make no difference, all the cells will be drained at the same amps.

Hello, Ms. Dood! :) Grid outage from current admin vs. any other cause? Start with 50-50 odds and adjust these odds based on evidence. I'm a city slicker and I dislike all politicians but I'd say 5-95, admin vs. other causes. BTW, I've studied conspiracy theories six ways from Sunday and...

The thing with LEDs is that they don’t act like a constant resistance load, they act like a constant power load, so 24w @ 12v = 2A but 24w @ 6v = 4A. This gets very messy very fast. Incandescent lamps act like a constant current load but they're on the way out.

This cable would have to pass 600A to get 0.8v. I doubt it.

24v vs 12v needs half the current so saves on copper but this cost saving is probably swamped out by the total system cost. 300w on 20% of the time = 3000w on 2% of the time with no batt. charge or discharge.

Half of 85.6v is 42.8v. Half of 6.43A is 3.2A. This panel should be able to deliver 42.8 x 3.2 = 138w into a 85.6/6.43 = 13.3 ohm resistor & so the input MPPT should be 42.8v & the input current should be 3.2A. “12A when in full sunlight. Voltage reads fine at 79v” should put out 40 x 6 = 240...