Recent content by GXMnow

I used the 20 or 22 awg wires that came with the BMS, had to extend a few of them. I soldered them directly on the tabs where each bus bar soldered to the PCB. While trying to cut the pack down to make the 14S stack, I popped several of the factory fuses as the saw went through the PCB. The...

Amazon managed to send the correct 16S version of the 100 Balance 1 amp active balancer. And today, I got my extra connectors to make up a "Y" harness. I tested it all by letting it finish balancing my E-Bike batteries. You can set them to balance less than the number of cells they come wired...

I have a 4,800 watt array with Enphase micro inverters in Southern California. These are 5 year old single sided panels. In early May, on a clear day, I start to get usable power at 6:15 am. It tops 500 watts before 7:45 am. Due to my panels being turned 20 degree west, my "Solar Noon" comes at...

Back on Sunday, May 12th, I left it exporting close to 3,000 watts, and sort of forgot about it until 6 pm, oops. Here is what the XW battery summary looked like. While the sun was still shining, the battery was charging nicely. But from 4 pm to 5 pm the sun fell enough that the demand from the...

After sun down, I checked my final numbers. The 2,000 watts of DC panels produced a solid 11.38 KWHs. That is 5.69 sun hours. Not too bad at all. The Victron is doing way better than I ever saw from the BougeRV charge controller. But the Enphase system still did better. It pulled 28.5 KWHs from...

I ordered a 16S 1amp smart active "100 Balance" cell balancer. The package arrived today, but they sent me just a 10S version. Oops. The new one should be coming on Tuesday, and then I have to send this one back, assuming they get the order right the next time. If they mess up again, I may just...

Correct. At this point, SCE knows I have solar, but I have not officially told them I have batteries. But the fact I am "exporting" 20 watts at 1 am looks a bit fishy. They have never said anything, but for 6 months, they added an offset so it was showing as 20 watts of import instead of export...

I am on an NEM 2.0 deal with SCE. On my contract it only says peak export of 16 amps and maximum 900 KWHs of export per month. While I am now close to the maximum current, I am well short of the energy limit. It looks like I might be able to get to 26 KWHs per day, so for 30 days, that would hit...

I was surprised to see it, but So Cal Edison posted the Saturday usage data on Sunday morning. Here it is. It fell just a tick short of my maximum export. I am doing it a little different today. I already started it exporting before noon. The battery voltage is above 57 volts, so I just set...

Okay... It's been more like 3 hours, but I wanted to catch the end of it. I'll start with the Enphase production for the day. That day is not over, but the energy is falling at 5:50 pm __ The power dips after noon were from a band of clouds that moved through. Overall, production is still a bit...

I am doing a little experiment today. Th XW-Pro hit it's full charge level 56.5 volts at just 10:20 AM and it is very sunny, with just a few passing clouds. The DC system was getting close to hitting absorb after just 2 more hours at 12:20. With the strong sun, the Enphase system is cranking...

The iQ7's are technically in the shade about 3 inches clear under the panels, but they still reported hitting 140F last summer. That seems to be the temp where they start to power limit a little. Watching the temp graph, it flat lined as the power dipped about 10-15 watts off on each panel. 140F...

How many watts of panels are on your 6 KW AC coupled inverter? My system is only 4.8 KW of panels on 3.9 KW worth of Enphase iQ7 inverters. With some haze in the air and hot panels, it didn't quite go into clipping today, maxing out at just 3.7 KW out of the microinverters, far below your 6 KW...

All I can say is "WOW!" The sun is out in force, but the temps are still reasonable, so I am not running any A/C yet. My Enphase system is producing just shy of 30 KWHs again. It would do more if the panels were not getting so hot and there is a bit of settled dust/pollen on them. Add in the DC...

Voltage drop is a killer in a 12 volt system, so I would go with the #2 to be on the safe side. I am using #2 for my 100 amp connections in my 48 volt system. And where my 2 battery banks join, it steps up to 2/0 to the inverter. A 0.6 volt drop at 12 volts is 5% loss. On a 48 volt system, the...