I current have 14 x 410w Sharp panels, Fox H1-3,7 inverter and 5x2.5 kWh MIRA 2500 batteries.
These were installed in July 2023.
On average we use 40 - 50kWh per day, however this does include charging either an EV or a plug in hybrid.
The cars are charged from the grid and not the batteries on the Octopus Agile tariff.
I see on SunVolt, MIRA 2500 batteries are £700, in your opinion is it too late to add 2 or 3 more batteries due to the difference in wear?
From reading the forums are there different versions of the MIRA2500 which could cause a problem?
Thank U for any advice
Darren
Adding Additional batteries
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Dave Foster
- Posts: 1298
- Joined: Thu Oct 13, 2022 7:21 pm
No there won't be a problem, usually after around 18 months you might start to think twice but in your case they're all basically brand new.
The Mira HV batteries are all the same type there has never been a V1 or V2.
Just a final point, Foxess only recommend you fit a maximum of 7 HV batteries saying it's a warranty issue because the H1 hybrid inverter is unable to meet the maximum charge voltage of 8 in series - the only comment I can give is that there are plenty of people that have 8 HV batteries (HV2600 & Mira HV25) and they are and continue to work fine but you'll need to consider that.
The Mira HV batteries are all the same type there has never been a V1 or V2.
Just a final point, Foxess only recommend you fit a maximum of 7 HV batteries saying it's a warranty issue because the H1 hybrid inverter is unable to meet the maximum charge voltage of 8 in series - the only comment I can give is that there are plenty of people that have 8 HV batteries (HV2600 & Mira HV25) and they are and continue to work fine but you'll need to consider that.