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They were on sale at €705 each and it was only a 90ish mile drive there and back. Freight would've been ca. €40.

Will raise capacity from 13.8 kWh to 19.3 kWh and give additional margin to last about a week in winter.

I could stack one more module onto the tower for a total of 8, but that would be more than what I'm willing to spend right now.

Blast from the past: The build from about 3 years ago: https://poal.co/s/Work/603219

Sadly the photos have fallen victim to bit rot. Here's two from back then, December 27 and 28, 2022 : Inverter, battery, mains switch box

Almost completely wired up

They were on sale at €705 each and it was only a 90ish mile drive there and back. Freight would've been ca. €40. Will raise capacity from 13.8 kWh to 19.3 kWh and give additional margin to last about a week in winter. I could stack one more module onto the tower for a total of 8, but that would be more than what I'm willing to spend right now. Blast from the past: The build from about 3 years ago: https://poal.co/s/Work/603219 Sadly the photos have fallen victim to bit rot. Here's two from back then, December 27 and 28, 2022 : [Inverter, battery, mains switch box](https://poal.co/static/images/e66161e5f8c9cbdb.jpg) [Almost completely wired up](https://poal.co/static/images/7b312fe36d71484c.jpg)
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Weird, never noticed that bright spot and I've been in there a thousand times. Almost looks like an afterimage at first. I checked and it looks like some additional paint was applied there. Good eye. Hardly shows up in the infrared, btw.

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No concerns about battery fires?

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Those are LiFePo4 chemistry. Very safe.