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I’ve just spent a bit more time investigating the Earth-Neutral link question on the 12kW Deye. I can know get it to use the internal relay by checking the ‘signal island mode’ on the advanced menu. I think I understand the need to connect Earth to Neutral when in island mode after an...

Some good questions. Firstly I’ve not monitored the self consumption yet, but I’ll try and get some numbers on that. Secondly I’ve not sorted out the Earth-neutral relay in backup mode yet either. The inverter is the 3 phase 12 kW model, currently unavailable in the UK as a Sunsynk but the...

The first pack is connected with CAN to the inverter, second pack to the first with RS425. I might try and use parallel CAN too, this is selectable on the BMS DIP switches, but needs some sort of connection box which I’ve not got my head around just yet. Though daisy chained packs are tidy to...

A follow up! A progress report. -2 Mason DIY units and 32 batteries ordered and paid for 7th June 2022 -Shipping confirmation received 28th June 2022 -Arrived at my door (UK) 8th August 2022 They are now assembled and in operation. The cells are not the cheapest by any means but the quality...

I’ve had a good response and communication with Henry, and he sent through a formal proforma invoice for payment in the form required by my company. So that’s 2 pcs Mason 280Ah case kits and 32 280Ah cells ordered and paid for. I’ll post progress!

Thanks everyone. Really useful information and feedback. If I go the Seplos Mason DIY 280Ah and their cells too then it would work out at £202.50 per kWhr of storage at 100% DOD. This does not include VAT or my time of course. So how does that compare with decent quality pre-assembled stuff?

Thanks, that’s reassuring. The Seplos BMS seems a good choice, and not a bad price on the rest of the kit. Have you got yours talking to an inverter?

Hi, I’m about to order a couple of Seplos 280ah Mason units from Henry Huang at Seplos, so I’m interested in how you found them to deal with business wise. Yours obviously arrived, so that’s a good start I guess! He is also offering some 280Ah cells, at about USD 165 ex works. How did you deal...