Recent content by Barbar0ssa

I was running like that with a 80s EZGo Marathon. I was terrified that the resistors would become a fire hazard at the increased voltage! :LOL: The wheelies are terrifying on a 3-wheeler!

Did you end up going with those batteries? Is A-123 still in business? These are listed as new cells but the company went bankrupt a few years ago? I just purchased 4 at the big sale and now you have me wondering how great of an idea it was. They are for a golf cart and the high advertised...

I know this is an old post but your battery packs are a work of art!

I took off the MC4 connector of one of the two strings producing nothing. When I unscrewed and then tugged on it, the connector came off but the crimped piece let go of the wire and stayed in the plastic. ? I am fairly certain I have some bad connections on the roof. This is infuriating because...

I pulled all 4 input strings and measured them. 94v, 94v, 30v, 3v. So 2 strings are worse than useless at the moment and I probably need to get back on the roof to debug them. I guess that is good news because that means there is some hope for improvement in the future. I left only the 2...

Today I attempted to recharge my batteries instead of applying an AC load. I've been playing with it today, and SmartESS says I have made 4kwh of solar. The highest peak I saw was 1400w, which seems awful. My xiaoxiang bms app says I added about 1.5kwh to my batteries. The wattage the BMS saw...

I attempted to charge my car but the charger gave me a ground fault. Thanks to all the help here, I was able to prove that I have a good ground when the inverter is plugged into the house system. My circuit was floating. So yesterday, I made a little bit of power!

Thanks for the reply, you are definitely on the right track. It looks like my system was floating. Things work as long as the ground is tied to the house reference ground as you suggested.

I'm really grateful for all of the help! Thanks so much!

It can be permanently plugged in. My goal is to use no mains power but I can manage that by not draining the batteries below 10%.

I set it into battery priority mode so it only uses mains power when the battery gets down to 10% and everything is working great. As long as it is plugged in, the circuit is not floating.

There is no documentation of the DC Loads but the voltage I measure on it makes it seem like it is the battery charging circuit. It is hot when the inverter is off (battery voltage) and the voltage goes up when the unit is on and charging. It's weird, I will never use it, and there is no...

Sorry that was confusing. I bet it is more accurate to say "Low Voltage" than "Split Phase." My inverter is only capable of outputting 120 (actually 110) @60hz. I measured (as described above) 110v, 75v, and 30v but I expected 110v, 0v, and 0v.

Battery polarity is correct.