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found a partial solution: moved GEN input to grid input. This works great. I would still like a source and schematic to buy a replacement AC relay. Love the product not the support.

I need a form for the Overkill BMS! I love it and Overkill's warrantee. Many questions answered browsing this form. I don't really understand the time/current/SOC display (Android). The time line does not seem right. It can be 2 days or several. Why? The SOC goes down and the charge current goes...

If you want current to pass through the studs (studs are an absolute must), do not use loctite. (I love loctite) I bought 2 extra 272Ah Lishen Basen from Emily Peng for my 2p16s bank. I used locktite on all. The 2 spares I put a 10A lab. charger on for the hell of it. Clips on the studs. Very...

If you have LiFePO4cells, then you have to have a BMS. The Overkill BMS's have an automatic log function. Each day ,or hour you can see charge and capacity over time. That will tell the story. Later, LEw

Wholeybee, Good to know. I have messed with many many setting over several days. First I cut back the cell and pack values to way conservative values then slowly increasing as I became more confidant. New batteries and did not want to f them up. Again, this overkill bms is awesome! I did see a...

System 2p16s Lishen 3.2v 272ah (Basen Emily Peng). Took a long time to arrive while I sweated. All at 3.29V. I connected an Overkill 100A 48v BMS. Left on panels (2kw max for 2-3 days. Overkill has the greatest warranty I have ever seen! I use the bMS as a charge controller and seems good. I...

Ya, I need to get the part number of the particular AC relay that has started arcing.I think it would be fairly easy to remove the left side board and remove the solder and replace the worn out relay. Why they did not engage zero crossing I can fathom..

I have an xw4500 that has been running for many years. The relay for gen input began arcing. Switched to grid input and it works great again. (off grid!) Any schematics/part numbers to help me replace the failed relay?

Bought a voltmaster 9kw generator from Granger and 2 cogbelt pulleys and cogbelt Calculated the ratio so the 13HP engine turns 2400+ to get 60Hz. When the engine gets cranky I just replace it. The current Harbor freight 13HP unit works great. Watch for a sale. Have had the setup for many years...

Wow. Have seen a lot of all in one's. warrentees are tricky to find!

Ok,Growatt. Enshey fencia denshine careshine ovovo locute on Amazon. Are these all the same manufacturer?

Why are there different "brands" of Growatt all in ones? Is there a comparison of all in ones? I am tempted by the new Renology unit. Out of stock!

Wow! I am in almost the same situation. I am anxious to see comments as well.

Just in! The parameters are based on 12V system settings. Parameters are multiplied by 2 for 24V systems, multiplied by 3 for 36V systems, and multiplied by 4 for 48V systems. For example: The boost voltage for flooded will show 14.6V. But, in reality, it is 58.4V as long as your charge...

Good news: just bought (amazon) Renogy Rover 60A charge controller.Its a beast, good contacts, huge heat sink. Bt works great. bad news: auto detect 48v and charges ok i think, but displayed parameters are 12v WTF. How can I get the parameters to sync with the bank voltage? Waiting on Renogy...

How many cells? Lew

I hope to receive 32 280AH lifepo4.Waiting. Top balancing will be a challange. I have 10a supply perfect for a few cells. 32p seems impossible. Suggestions?

How do charge controllers deal with a fully charged battery? Where does the energy from the panels go? Many years ago with the sun up I disconnected my FLA from the controller and inverter. I was panicked to see 90v on the inverter input (it was off). Used an electric drill to discharge the voltage.

Been thinking about grub screws (I think studs?). Loctite has anti seize compound copper in grease. I bought a large jar for spark plugs. Plan to use it on new 270ah bats coming soon i hope. just noticed Berkel 01-40825A-10004 Grub Screw, M6x20. $3.50 ea. ouch. Hmmmm. Lew

My xantrex is many years old. The gen. input relay was arcing and would shut the charging down. Since I don't have any power other than solar I switched the gen. to the grid input and it works great maybe the rest of my life. I do think about the 'all in one's', but this system only needs lfp...

Does anyone have experience with these? Thanks, Lew

Max, I get 32 cells 16s2p for $4480 from deligren. For a 48v 400 ah battery pack. I would like that to be $2800. How can I do that?

Interesting. Looking further: Cell model：BLDB2R4025C -2.3V/25Ah Battery specification: 32S20P/72V/300Ah Wow, that's a ot of cells.

I noticed: KOK POWER Lithium Titanate 12V 100Ah Battery Pack Made of LTO 2.3V 35Ah cells in 5S3P For ESS And wondered why they parallel these to get 100Ah when they could just use 100Ah cells? Thanks

I will keep my question simple. I have used 8x6V (48V) Crown 430Ah batteries for 2+ years. I have killed them every day. ie below 12V under load. My neighbor have twice the batteries and he says he is fine. Lithium is the way to go if I can afford it. What is a rough equivalent to 16...