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I am expecting to pick up from the port two EG4 PowerPro Wallmount 14.3kWh batteries to tie to my Sol-Ark 12k system. Sol-Ark said be sure the battery address is CANbus address 00. EG4 shows the DIP switches labeled backwards from normal convention (all 8 switches ON EG4 calls 00, the...

I just ordered two of the EG4 Powerpro wall mount batteries. Most of my research on EG4 is from this forum, so I'm hoping Signature Solar and EG4 are as reputable as I've read here. I did buy an EG4 Chargeverter - 48V 5100W battery charger from Signature Solar and I had excellent service, fast...

I called Signature Solar today at about 9 am my time, 2pm their time to talk to the Sales people. I was on hold for just maybe 3 or 4 minutes, then got a sales guy. I got a quote with shipping to Hawai'i - got it emailed to me - it was in my in box before I got off the phone. I've bought...

Wow, not good if Signature Solar Tech Support is telling you this. Can we confirm that this is SS's real solution, or is this one guy in Tech Support saying this? I'm thinking of buying some EG4 equipment from SS. I'd like to know what the real issue is here.

Good to know underdog. Thanks for sharing. I've told friends who were buying new systems that 24V is really obsolete.

Hmmm... isn't RS-485 spec only one pinout? I'm asking, been a while since I designed electronics. I'm interested to know

Yes, I think the Aquion's have met their end of life. They are not serviceable, and I've never tried to disassemble one, but I may do that and post photos and what I find here (may have to wait until I run out of things to do - ha!). and my generator is running right now feeding my EG4...

I have 39 Aquion sodium ion 48V batteries now. They were given to me by two different friends who were upgrading to Li-ion (Simpliphi) batteries. They spent about $1k/kWh on the Simpliphi batteries. The one batch of 21 had been sitting for 2 years under a tarp, getting wet because the tarp...

Thanks James. Will UL not certify to 9540 just the battery as an ESS? Why does the testing involve the inverter?

I'm looking for UL 9540 listed 48V batteries. Seems like they don't exist?

So is the EG4 PowerPro being UL certified to 9540 only when connected to an EG4 18kpv?

you can always move to Hawai'i. Here on the Big Island, a huge percentage of the homes on the east side (Puna) of the island are unpermitted, and a huge number are totally off grid (like me). No permits, no inspections. It doesn't get too cold or too hot on most of the island. It rains a...

This may not be the thing to use, but maybe better than nothing if you want the least expensive route. I tuned some steel drums for a guy who had designed a product that he was selling on QVC or something like that. It was a towel you could throw over a burning pan on a stove to put out a fire...

The 93 LRA is Locked Rotor Amps - this is mainly reactive power (VARS) not Watts. But high frequency inverters like Sol-Ark can't supply much reactive power - they have very little iron core in their transformers to provide the reactive power. I have two air compressors, both are connected...

I’ve had no problems with my 3 year old 12k and good support from Sol-Ark. I’m off grid and my system has produced 4.6 MWh. I can’t start an air compressor with a 240V 93 LRA even with a soft start module. So I’m thinking of selling the 12k and buying a 15k. Or the other option is to just buy...

Just need to protect it with some of my Human Glue Boards :)

A battery pack can be located a long distance away, you will just need to have larger diameter wires the further away. You always want as low of resistance in the wires as practical, the lower the better. The resistance of the wire causes a power loss proportional to the square of the current...

Look very interesting... I am thinking about getting two of these for my off grid Sol-Ark system to replace my 39 Aquion 48V sodium ion batteries (good for about 5 kWh now... waking up to my Starlink UPS beeping because power went off). What cells are in these? Are they laser welded in or...