Hi, Does anyone have any decent low voltage rack mount batteries stacks? I saw the deye stacks in person but i want some more options. I was at this one company's showroom they had some brand called Lumo, It looked quite decent but never heard of the brand. Does any one have any experiences with these batteries?

30 minutes ago, Nolwazi said:

Hi, Does anyone have any decent low voltage rack mount batteries stacks? I saw the deye stacks in person but i want some more options. I was at this one company's showroom they had some brand called Lumo, It looked quite decent but never heard of the brand. Does any one have any experiences with these batteries?

Hi there... I can't say i can answer you, but can you share what you mean by stack? You mean the ESS options by Deye, or do you mean the rackmount type batteries? Can you share links to, or an images of, the Lumo and Deye stack you saw?

Hi, sorry I didnt clarify properly. It was the rackmount batteries in a standing rack of about 12. These Lumo batteries looked quite similar to the Deye rack mount batteries, they were side by side in the showroom. I dont really have photos for them unfortunately. I haven't been back to the showroom since then. From what I know, the Deye batteries were the LV Li-Ions 5.32KwH batteries (51.2V with 104Ah). I was told they are 'SE' Deye batteries. Other than that, I can make a trip back there sometime and just grab a pic and update you here.

Ah... I see. I currently use 3 x Dyness B3 batteries (The dumb ones), in an actual server rack. (Connected to a SunSynk inverter) It's been a year and a half with no issues.

I also chose to go with multiple small batteries (3.6Kwh) instead of 1 big one (10Kwh). In case there is a failure i do not lose the whole battery. But there are many other options from Deye to Pylontech to Revov, Hubble  Sunsynk etc. But to be honest, the actual (High End brand names) batteries, i think, are not too far apart in quality. What usually sets these batteries apart is the after sales support.

To be on the safe side, i would pay a little bit extra and go for the known brands that are available and supported locally. E.g. SunSynk, Revov or Dyness, (but the smart ones with BMS monitoring and SW updating over wi-fi) . I do not know LUMO, so maybe it also has pedigree.

(P.S. I saw the Dyness B3s were only R13K on geewiz which is a steal). I paid R18k to 22k per battery  less than 2 years ago.

 

I have a Sunpalsolar 48v 200Ah Lithium battery

The connection between this and the inverter is unclear

Should I be connecting the CanH, CanL and ground connections with the inverter and battery or the RS485 as it does not seam clear.

Also can you charge the battery without the Can/RS485 connection if using an inverter that does not have a connection?

Any advice would be gratefully received

19 hours ago, Normsolar said:

Also can you charge the battery without the Can/RS485 connection if using an inverter that does not have a connection?

Hi Normsolar, welcome to the forum.

Yes you can! As the alternator does the charge management for your car battery the inverter with the correct settings can do a perfect charge management on the base of battery voltage. That's the way I do it and it works fine for almost 5 years. I use RS485 only for remote monitoring of the batteries.

Thanks for the reply, it has put my mind at rest.

I have a 10kw wall mounted battery I want to connect to the AGH-10.2kw inverter.

Regards

Norman