Yep, that’s me. Cheap battery, reduced my monthly bill by 75%.
Are you just storing electricity from the grid when it’s cheaper, or did you do solar as well?
Not the same guy but I’m having both installed right now. I’ll be buying cheap electric at night to fill my batteries and running the house all day from that, while exporting and selling anything from the solar as well as any excess.
Every unit I sell is worth 12.5p, the cheap rate is costing me only 5.2p. eventually that export rate will go away, I’m which case I’ll be able to be self sufficient about 2/3 of the year.
What’s a “cheap battery” gonna cost me?
I’m the UK, 10kWh from a large brand (sigenergy) costs about £2k, but cheaper brands you can get about 3x the storage for that price.
Thanks! I’m more in the $100’s kind of budget.
What are the drawbacks or tradeoffs for cheaper brands? The recent Lumafield report on lithium ion batteries was horrifying.
Most home storage is Lifepo4, rather than lithium ion.
It’s a bit more expensive, and only has 80% of the capacity. In tradeoff, it gains 3-5x the lifespan, and an inability to burst into flames.
Bigger brands tend to be more reliable in capacity and lifespan. Cheap ones are more hit and miss. It might be fine, it might fail after 3 years, rather than 10.



