Yes i am starting up again...with more knowledge and experience this time
While i had made packs of a 100 cells with a fuse per cell of 1A, and per pack/serie a 25A fuse (can't remember if i am honest could be 100a or 10 a?)
With a extended tested race , no...---> fall out race for the...
I am thinking NOT to save money but to KISS( keep it simple stupid)
To just buy some solar chargers(victron or
as an example) and a inverter(aims) and a pre choose switch like this one...
Are there any "snake pits" before i buy the first one i see.
What to look out for?
Nope i am not a fan of you tube, but i would like to hear your thoughts and experiences, please.
That i need one is for sure, soldering is nice but: sooooo time consuming with fuses.
So spot welders? any...
2 months ago you would pay 80 euro (100 euro for a grade)for a 100ah @ 3.2v cell, now there are at 30 to 50 euro each?!?!?!?!?
Is there a new technology coming?
Or was there a over production?
What could explain a 50% price drop, that would make lifepo cheaper than nissan leaf cells???
I was looking for any information ( on the net) about the self life of lifepo cells.
I could not really find some usable information.
Probably i used the wrong words?
If i let them just stand on "the shelf" how long would the the self life be?
If i use them on a regular...
I changed the title n the hope to get more help...
I know this is to goood to be true...
But any advice is better than no advice...
Probably my mistake, i changed the title aswel:
10 times bmw packs, what to do?????please read and any advice is wanted, 10 packs....yes or no, what to do | Second...
This weekend my friend and i are going to look at 10-15 bmw battery's production years: 2018-2019 and even 2 from 2020.
The disassemble of them is going to be with a lot of obvious, distinct, insightful, perspicuous, plain and precise safety!
Including my most loved tools: the grinder(the big...
This was also found on my fathers attic, i figured out it is at least 100 years of age and a resistance meter.
, German late 10 or 20 (....down Wolf down....wolf no....no....down boy..down.......good boy Wolf...)
It is a "bridge" resistance meter or something? what can you tell me...
My question is a bit childish..
I am still playing with trains, but this time in my garden.(gauge 1, 45 mm track)
I would like to rc control them, the deltang and other are for my taste to expensive, i think the cost can be brought down to 10% of the price of the deltang and other receivers and...
I wish best for all and may 2021 will become a year:
That Corona will be nothing more than a beer.
That insulation is something you put in your walls.
You only have to wear dusk masks for sawing jobs.
Cotton swaps are only meant to clean your ears.
And 6 feet or 1.5 meter distance is the minimum...
I was on a other forum with solar panels and someone(like all of us sooner or later) had snow on his pv.
So no energy, they suggested to add one and keep it clean: one panel at ground level and redirect the harvest to the other panels to desnow/deice them?!?!?!?
My suggestion was to put some...
Just as the title: warm water gives us comfort.
I would like to go with an experiment i saw on youtube some time(2 years???) ago. Whom?????got no idea, young boy ~25-30 years of age, was doing his entire house.
Take a insulated barrel (50 gal/205 litres), install a heating element 48v and plug...
Good evening all...
Nice and warm in front of the fire place....cold windy raining outside, dogs are walked, i love to have the insulation of my house done.....
Before i am going to buy a (cheap) electric car and tackle all the regulations in my country, i would like to ask:
Is there someone...
After 2 years of studying and experimenting i think i found MY golden match....I think, that is.
I would really appreciate your opinion, thoughts, ideas and comments!!!! and every thing else.
End goal: 9 of the inverters and 90 of those panels.
Use two ev cars, home heating(direct into a water...
There is some one here (on this million dollar forum)that has a cycle tester, i forgot his name, sorry
I would like to buy one to test some Chinese cells.
If it is for salebtw.
Tanks in advance,
Now what is the big deal about SOH.
When i was harvesting li ion 18650 i toke all the cells out that where below 80% soh.
Because it was safer?
But if i would assemble packs (14s100p)with only ~50 to 70% soh i would have ~1 to 1.3amp left from a 2A cell?
And they would decline faster and faster...
Just like the title is telling you.
For those that are wondering: i sold a lot....no...... i sold to much....but you really think i was quieting!
******** i sold 106kwh.....go do your calculations....106!!!!!kwh!!!!for a bargan.....
Anyway building up again:
My end goal is: 400kwh home storage...
Update 2: 1st of march 2020
How I gotstarted:
How to build:
This first post will be updated when needed with new test results and cells.
Goal is to find out:
1: there max charging volt...
Hi ya all.
This project started several weeks ago and i have good hoops for a good ending, if no good ending: bad luck, waste of money but a LOT of fun.
A forum member brought this to our attention, and i decided to experiment further with it...