MadMax03
New Member
- Joined
- Sep 21, 2019
- Messages
- 249
Lotta people throwing the term around. Had no idea it was an actual "thing"! Busted out my google-fu and found this:
Tres cool ty!Same batteries used in BMW's in China.
Also from that wiki article these battery companies are increasing production hugely. It says in the space of 4 years they plan to increase production 5 fold, that's going to bring the price of cells down, which seems to be what we're now seeing.
EV car production is going to be what's pushing this forward now.
I am not aware of any EVs that use Lithium Iron Phosphate batteries (outside of China). LiFePo4 batteries do not have the density of Lithium Ion. Not a problem for most solar setups but a big issue for autos.
As for prices of Lithium Iron Phosphate batteries dropping, they have been and will continue to do so.
"Grade B" cells, if the reason they are "grade B" is they do not reach their designed capacity or their resistance is slightly out of spec, not really a big deal. As long as the cells you buy are matched to each other.
Well CALB is a different chinese company for one .What's it about those CALB cells that make you think they're a copy? Do you mean the 100ah or the 200ah versions?
The weight is down due to aluminium casing no? Comments have people confirming the capacity is correct.
after peeking inside the Lion batteries and seeing The same blue batteries you see on BLS, YouTube videos of Victron lithium batteries containing yellow Chinese Thundersky or Winstons, It should be evident that China makes quality lithium batteries.
LiFePO4 batteries have a very flat voltage curve for majority of their state of charge. The voltage will rapidly increase sometime after 90%. Same on the other side, voltage will rapidly drop somewhere under 10%. You can search for "lifepo4 charge curve" for lots of graphs.
Yeah. It just seemed to be sitting exactly at this voltage for a very long time with no change. I just asked jason at BLS and he said "this is normal", so not 100% sure.
I'm using the utility charger. I don't ont have it in my trailer conversion yet so no solar. Should be charging at 20A. That is the rating of the utility charger in my unit.What does your charge controller report for energy generated? How big is your solar system?
For reference, it takes my 330W system roughly 2 days to charge my 24v 120ah bank.
Any ideas on the voltage? I'm waiting for a hall effect monitor and then will do a capacity test.
Did you order from aliexpress?I bought the 190ah battery pack and am charging it with the 12V MPP solar all in one off shore power right now. The 4 cells arrived very well matched matched at 3.1V, which I thought was a bit low. The pack wont seem to charge past 13.55 volts. I do have the daly BMS 100A on it.
I'm new to this, but I was expecting a much higher voltage before they stopped accepting charge. I have the bulk charge set to 14.6 as recommended by BLS. Wasnt exactly sure where to set the float but have tried changing it to see if that was holding up charging. Cells were 4 mV out of balance, so balancing now. I didnt think that was too bad.
Any ideas on the voltage? I'm waiting for a hall effect monitor and then will do a capacity test.
YesDid you order from aliexpress?