I’m thinking about swapping out my 5.2kWh battery for a 9.5kWh battery and would like to know if it will be plug and play, will it just work or is there more to it?
I currently have:
5.2kW Hybrid Inverter
Gen 2 9.5 kWh battery
Gen 1 5.2 kWh battery
My 5.2 kWh battery is a bottleneck for my system, I have good capacity but limited discharge due to the 5.2 kWh battery at 50amps.
Thanks
Plug & play. But you will need a new battery to battery cable as 9.5 batteries are Gen2/Gen3. Don't forget to set the new battery to slave (dip switches), assuming the 5.2 is the slave now.
If your inverter serial starts SD then it's not the 5.2 thats the bottleneck it's the inverter. Adding another 9.5 (or another 3) will make no difference to the charge rate.
I'd not throw a 5.2 away for no reason.
hoggy
Thank you for this you’re correct, I stand corrected.
My original system came with a gen 2 9.5 battery, I thought I’d bottlenecked the system by adding the 5.2 battery @ 50amp.
I’ve just checked my inverter, the serial number starts with SD, max battery charge & discharge is 50Ad.c 2500W.
I feel better knowing I haven’t bottlenecked the system.
I’m guessing it isn’t worth throwing more money at the system and to leave well alone while it’s working.
hoggy The situation is evolving. I’ve checked my original quote and inverter specs, turns out a gen 2 inverter should have been installed. Either they made a mistake or pulled a fast one. I’ll be contacting the installer Monday to see if they’ll put this right, if they’re not willing to I’ll consider small claims.
I contracted for a Gen2, but Covid came and the installer could not get any, so it was wait 6 months or have Gen1.
The Gen1 has been fine.
What will you make a claim for, the difference in price between a Gen1 and a Gen2 is the only "loss" you have suffered unless you can somehow show you could have saved energy/money, though I think you will struggle
SteveCook I see it as a breach of contract by quoting a superior better performing product then supplying and installing the previous generation. I was quoted a gen 2 inverter and gen 2 battery both rated at 80amp, the inverter is bottlenecking the performance of the 9.5 kWh battery.
I don’t know what real world loss this had and will cause long term.
Did you get a discount for accepting the gen 1 inverter.
Are you happy with your system and what batteries do you have?
djscott
hi. I agree with you, but having worked in engineering consultancy for 40 years, I am just giving you the experience I have encountered. I dont know the relationship between you and your installer. They may agree with you, but where are they going to get a G2?
How long has the system been installed. They may argue that you have received the benefit and not said anything, could mean tacit acceptance. Just saying these sorts of claims are very difficult to get a quick/easy resolution.
If you don't get on with your installer, it is difficult to claim for a theoretical loss. Like trying to claim the late train prevented you from buying the £10m winning lottery ticket!
My installer was upfront and said that while G2 was the quote and plan, he could not get the G2. He showed me the wholesale supplier prices and they were the same. The issue was getting hold of a G2.
We agreed on the G1 as six months of 2.5kw was better than no months of 3.5kw
I have a late G1 and it has been fine. my biggest issue is winter at 2.5kw means i really need to use Eco7 in order to make sure I get best off peak charge. I have just bought another 9.5 to go with my existing 9.5 (up to 19kwhr), so I need 7hrs at 2.5kw to get close to 100% if I have drained most of the charge.
Other than that the inverter has been stable and great for 4 years.