15 year old lithium battery

[PaulRainbow]

It's very cheap.
But those cells only have a 2 year warranty.

So what ? A new Fairline that might cost £3,000,000 only has a 2 year warranty.

And that's a factory gate price in China, so unrealistic to compare with a VAT paid nextday consumer price in the UK.

That price includes tax, you just have to pay the carriage. I just ordered 3 batteries from my supplier and the carriage was £22.50 plus VAT

 

[lustyd]

They’re not drastically more expensive shipped from Fogstar in the UK if support is important.

 

[B27]

They’re not drastically more expensive shipped from Fogstar in the UK if support is important.

Fair comment.
But their warranty is 1 year!
A Tesla powerwall has a Ten Year warranty.
5 years is common for industrial lead acid.
3 years for some 12V LIFEPO4 drop in batteries.

 

[lustyd]

Which is interesting because (thanks to the EU) we have a minimum 2 year warranty period in the Uk.

 

[stranded]

Fair comment.
But their warranty is 1 year!
A Tesla powerwall has a Ten Year warranty.
5 years is common for industrial lead acid.
3 years for some 12V LIFEPO4 drop in batteries.

And Fogsstar Drift batteries using (I presume the same) Eve Grade A cells have a 10 year warranty - suggesting perhaps the lack of confidence is not in the cells themselves but what diyers might do to them!

 

[lustyd]

To be fair to them, they agreed I could saw the handles off my 300Ah without affecting the warranty so no idea what DIYers must be up to

 

[Sea Change]

It's very cheap.
But those cells only have a 2 year warranty.
And that's a factory gate price in China, so unrealistic to compare with a VAT paid nextday consumer price in the UK.
Good to see prices are still falling.
I'm looking at a panel and battery system for my house.

If you follow through to the checkout, it's still pretty cheap. They're quoting me £262 including delivery to the Isle of Skye.

My first battery was £407 all in, in early 2021. Even back then, that was cheaper than deep cycle lead acid.

 

[GHA]

Just changed "float" to 13.25v / 3.3125v pc to see what happens.

Just amazing what a difference 0.05v makes! Just changed the float voltage from 13.25v back up to 13.3v, sun going down now but it was keeping up with house loads for a little while, bank was discharging with solar regs set to 13.25v. Gonna stick with 13.3v "float", very much doubt 50mV higher will make any real difference to the cell life.






See no lies with Raspberry Pi's