Idiot's guide to a self build battery

[Countrypaul]

Joe, as they say a picture tells a thousand words, certainly looking at those graphs things look good.

[Joeboy]

Joe, as they say a picture tells a thousand words, certainly looking at those graphs things look good.

I'll photo a before and after graph to show the change in SOC angle. It is a marked change.

[Joeboy]

08.40. SOC was down to 82%, had the day using the Esaw chopping logs and running the splitter. At 15.20 the SOC was 88%. That was a flatline graph day, never seen the like Over the moon with this set up. It helps that I'm running my life like every kWh is precious and all the more satisfying for that.


Real Powerwall!

[Krill]

It looks like you have been refilling the pink bubbles from the motor oil container?

[Joeboy]

It seems that 92% soc and 3.33V in the LF280's are the consistent readings seen first thing in the day.

Quite a lot of PV charging goes on through the day before it ticks over to 3.34V. Having to recalibrate my expectations.
This is excellent

[Kenny000666]

So I’ve been keeping an eye out on Alibaba, AliExpress and BasenGreen

Is there any any reputable sites (not sure I trust Alibaba, or AliExpress).

Price wise, since you guys started 3-4 months ago, the prices have shot up? For 16 x lf280s (which are almost the same price as 304) we’re talking almost £2000 now. Maybe I’ll hold out?

[Stinsy]

So I’ve been keeping an eye out on Alibaba, AliExpress and BasenGreen

Is there any any reputable sites (not sure I trust Alibaba, or AliExpress).

Price wise, since you guys started 3-4 months ago, the prices have shot up? For 16 x lf280s (which are almost the same price as 304) we’re talking almost £2000 now. Maybe I’ll hold out?

You're not "trusting Alibaba or AliExpress" it is just a listing site the same as eBay, you have to trust the seller.

If you want LiFePO4 batteries from a UK seller you're going to pay a big premium from Fogstar (for example).

[Oldgreybeard]

My experience of buying through Aliexpress has been better than buying through eBay, although I may just have been lucky. Aliexpress also now looks after the VAT and import costs in the main (or seems to).

[Kenny000666]

Hi Stinsy

I mean, I agree it’s just a listing site, but I guess, as you don’t know who the supplier is, how do you know if your getting actual Grade A stuff or if it’s just Grade B etc. Whereas maybe a supplier like BasenGreen may be more reputable? I read one of the earlier posts and this was one of the suggestions to be cautious about.

[Joeboy]

Hi Stinsy

I mean, I agree it’s just a listing site, but I guess, as you don’t know who the supplier is, how do you know if your getting actual Grade A stuff or if it’s just Grade B etc. Whereas maybe a supplier like BasenGreen may be more reputable? I read one of the earlier posts and this was one of the suggestions to be cautious about.

I've left the name of who I dealt with in the thread as well as the company name. Just get it bought and don't gnaw on it. Trust me, don't procrastinate, its the death of progress.