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I am a complete noob regarding solar, but I am planning to set up an off grid solar system for my backyard utility trailer I use an an office/workshop. The trailer is roughly 8' x 14', and the 14' side has southern exposure. I am considering installing 4 panels (72 cell) in the portrait...

I have no AC output on my Growatt 3000 watt 24 volt all in one inverter. The batteries are at 27.4 volts. I have the letters "FC" on the display but there are no fault codes on the display and the fault code light is not flashing or beeping. Power is available from the solar panels. Does...

I just bought 4 Trina 405 solar panels for my off grid application. I will be using a Growatt 24 volt 3000 watt all in one controller/inverter. The panels have an Isc of 10.52 amps and a Max Series Fuse Rating of 20 amps. I plan to connect 2 panels in series, then run 2 strings to a Midnite...

I got a call today from Battle Born to confirm my shipping address before they sent the batteries out. The call back number left on my voicemail was the number for Dragonfly energy batteries. I looked at the Dragonfly website and the batteries appear to be Battle Born batteries in a different...

I am considering buying 4 Battle Born 12 volt 100 AH batteries and wiring them in 2 banks of 24 volts each, and connecting them to a Growatt SPF 3000TL LVM - 3kw 120Vac all in one inverter/charger. I would like to wire the batteries in the most efficient way possible, and I want a disconnect...

Does the subject "all in one" inverter/charger/charge controller have any internal ground fault protection. I tried to contact the manufacturer but that has to be done via their website, and the email won't go through on their site. I could just run the AC output to a GFCI receptacle if the...

I am planning on installing 1600 watts of solar panels on my utility trailer (backyard workshop). It will be 4 Trina 400 watt panels. The specifications on the panel are: VOC 45.4V ISC 10.18A I would like to wire these 2 panels in two strings, then connect the two strings in a combiner box...

I have been individually charging my 4 Battle Born batteries which I had set up in 2 strings of 2 batteries in series for my 24 volt Growatt AIO. It took a few days to get all 4 batteries charged up to 14.2 volts (where the Victron IP65 said it was "storage" state) but now the first 2 batteries...

I am planning on installing a gate operator for my 6' high x 14' long sliding gate. I am planning on using this cheap gate operator which has great reviews on Amazon: https://www.amazon.com/gp/product/B0197V3OD2/ref=ask_ql_qh_dp_hza The comments on Amazon say it draws 200 watts, but I assume...

I just ordered 4 of the standard 100 AH 12 Volt Battle Born batteries from BB's website this past Monday - no word on shipment yet. I will be configuring the batteries 2 in series to make 24 volts, then connect the two 24 volt battery banks in parallel. I will be using 4/0 cable to connect the...

I have a MPP 24 volt 3000 watt all in one inverter and am about to connect my 4 Battle Born batteries connected in two strings of 2 -12 volt batteries in series. Being an ignorant noob, I need to know the correct procedure for precharging the inverter capacitors. I have a 30 ohm resistor which...

I have an MPP Solar 24 volt all in one inverter connected to 12 volt Battle Born batteries wired in series (4 batteries total, 2 strings of 2 12 volt batteries.) The system has been working fine for about one year but I had the batteries go dead overnight. I recharged the batteries individually...

I just attempted to buy 4 Battle Born 12 volt batteries from Northern Arizona Wind and Sun in Flagstaff, AZ, and was told that they no longer sell Battle Born batteries. When I asked why, I was told by the salesman that the problem was with their "business practices" and not a problem with the...

I need some help with calculating total input from the pv panels at the charge controller. I am planning on 4 Trina 400 watt panels connected to a Growatt SPF3000TL LVM-24P all-in-one charge controller/inverter. The Growatt has a maximum PV Array Open Circuit Voltage of 145VDC, and maximum...

When fuses are sized for batteries, is the amp rating of the fuse the same as the amp hour rating of the battery? In other words, does a 100 amp hour battery need a 100 amp fuse? I seem to remember reading something about a NEC requirement of fusing at 1.25 the rating of the combined...

I am installing a Growatt MPP 24 volt system in my utility trailer. I just turned it on for the first time and I am getting an 81 error "solar utility" error, with a green flashing light and a buzzing sound. I have two strings of 2 solar panels each going into the Midnite Solar combiner box...