Lishen 272AH thread?

[Banszi]

Here are my codes from my 8 cells I received last week from qishou. 1 had a blue vent cap.

The blue cap code does not match the date format.


1st pack
Blue vent
08BCBPB119CA61A18A320388
Grey vent
08BCBPB119707197RA120165
08BCBPB119A0319AJA122118
08BCBPB119911199KA120198

2nd pack
Grey vents
08BCBPB119B1119BEA120475
08BCBPB119A0319AKA120238
08BCBPB119A0319AKA120904
08BCBPB119A0319AJA121056

 

[Tuscumbia]

Thank you Banszi!

Your blue vent cell was the one we needet! It matches the datecode perfect, because after the 9 for 2019 they startet with an A for 2020!

1st pack
Blue vent
08BCBPB119CA61A18A320388 / A18 / A = 2020 / 1 = january / 8 = 8th => january 8th, 2020
Grey vent
08BCBPB119707197RA120165 / 97R / 9 = 2019 / 7 = july / R = 28th => july 28th, 2019
08BCBPB119A0319AJA122118
08BCBPB119911199KA120198

2nd pack
Grey vents
08BCBPB119B1119BEA120475
08BCBPB119A0319AKA120238
08BCBPB119A0319AKA120904
08BCBPB119A0319AJA121056

 

[Pyke13]

That’s what mine looks like but google gave me the option to search 08BCBPB119A0319AJA121169
I guess that’s the codes?

 

[Tuscumbia]

Yes, thats the code. The cell is produced in october 2019.

 

[Pyke13]

I was just away to say that. 20th of October 2019 I purchased on 44th December 2020 so just over a year old.
just capacity tested the first cell, 285ah @2.83v.
mot was 2.5v cutoff on capacity tester but 2.83v at cell measured with multi meter

 

[Tuscumbia]

I guess all the cells we get from Basen, Xuba and all the others are old stock and over a year old when they arrive. That´s why they are so cheap. Did anybody get cells that were new? Produced in the last couple month? I guess not. What I don´t like is that they all promise the cells are brand new and grade A and matched. Matched by voltage don´t say much anyway. Same voltage can be from 20 - 80 % SOC. Maybe they were grade A when they were new. But mine were also rewrapped with PVC by Basen. Capacity is good till now but the production dates from the single cells are a couple month away from each other. I think they send us what they can get cheap and mix them and hope that we don´t discuss to much when they are not 100 % ok. For me it is ok if they have no mechanical isues and have the capacity but they could build up more trust if they would tell us the truth and tell us that they are old stock but full capacity and why they rewrapped them (not all).

 

[Pyke13]

Technically they are new cells if they haven’t been used. Ok I know it’s not the same as them being made a month before they are purchased and getting our order with consecutive serial codes.
I think for the price we have nothing to complain about. I would be interested to know if the new cells direct from eve for $250 each have newer date codes

 

[Just John]

Technically they are new cells if they haven’t been used. Ok I know it’s not the same as them being made a month before they are purchased and getting our order with consecutive serial codes.
I think for the price we have nothing to complain about. I would be interested to know if the new cells direct from eve for $250 each have newer date codes

Eve docs say they should be cycled every 6 months of storage.

 

[Pyke13]

Not too bad for a 272ah cell

 

[Tuscumbia]

Yes, that´s what I figured out too. The Lishen 272s I got are all above 290 Ah but only tested 3 of 16 till now.

 

[Shellring]

I bought some Lishen 202AH cells from an Ebay vendor in July. Internal Resistance spec is more than proportionally higher than the 280 AH Eve cells, but still plenty low for my application. The pack I built is working well for me, no complaints. Of course this is my first LiFePO4 pack build, so I don't have anything to compare to except I know it beats the socks off my old lead acid golf cart batteries.

LiFePO4 pack is light in weight, compact in size, 3 times cycle times, and Eco-friendly. RV,Golf cart, AGV, data centre, solar light all use LiFePO4 to replace lead acid battery. Its the future, most automotive enterprises invested much time, manpower, and capital to develop the technology and minimise the cost of LiFePO4.

 

[Landon Ashby]

My guess would be that these are cells pulled from a line for a major buyer. Rejected because they don't meet their stringent quality control guidelines. But, there's nothing really wrong with them and this is a way for us all to benefit from that. Just a theory anyway.

 

[Landon Ashby]

Any thoughts on using an automatic fire suppression on installs? Something like this https://www.amazon.com/dp/B077LVMGJ4/ref=cm_sw_r_cp_apa_fabc_9ZDNXR7A50HHA8BXCGTA or an AFG Fire Ball.

 

[hilndr44]

I thought about this myself, but my thoughts were : there is enough energy stored in these cells to re-ignite the fire after the initial outbreak was extinguished. I'd be interested in hearing from anyone who has experience with these, though. For my own fire-resistant setup, I have my batteries on the floor of my garage, away from any combustibles, and I mount my inverters and chargers on drywall with a piece of metal flashing behind them.

 

[cinergi]

I'm looking at these, too. If the fault that caused the fire remains, then the fire could easily reignite. But otherwise, it should work. It's also supposed to coat things and remove the ability to combust, so it may at least work as a retardant after it's activated.
I'm not trying to accommodate a cell that's on fire (that's not gonna happen) - just equipment failure. Ideally fire suppression involves shutting off the system (e.g. trip the battery, AC, and solar breakers) so that the fault should be removed. Worst-case, it buys me more time to get out of bed to safety and/or correct the problem before it gets out of hand.

 

[Just John]

Any thoughts on using an automatic fire suppression on installs? Something like this https://www.amazon.com/dp/B077LVMGJ4/ref=cm_sw_r_cp_apa_fabc_9ZDNXR7A50HHA8BXCGTA or an AFG Fire Ball.

That is not a bad idea. If you have a cover for your battery, you could also use a fire blanket like they use in car engines (low melting point plastic holds it up). In cars, it also helps reduce engine noise, and it is out of the way unless a fire starts.

 

[Luthj]

For those who cannot tolerate fire risk, there are a few things you should do.

1: build the battery in a compartment without fuel to sustain a fire. No wood, non electrical rated plastics, foam, etc. Small amounts are okay typically.
2: build the compartment from fire retardant, and/or non melting materials.
3: If necessary install a self discharging fire extinguishing system. Tubes, temperature bottles, etc. A non flammable box does not require this usually.

Unlike other lithium chemistries, LFP won't go into self reacting runaway (flame spewing nastiness). So you just need to make sure there is nothing nearby to catch fire.

Honestly its almost never the cells themselves which cause a fire. Usually its a bad connection which is near flammable material, or an external component, like a charger/inverter which goes nuclear.

 

[stobbie]

Well... new campervan, new lishens.. fitmend not as clean as on the one that burned down, but everything works. A lot of work today, glued two solarpanels on the roof 1 x 340 wp panasonic HIT en one perc 200wp. Installed a 30A victron 220v charger, a victron orion 30A DCDC, a victron MPPT 100/30 and a MPPT 75/15, and a 272 Ah Lishen Lifepo4 battery....
There is not much airflow in the underfloor compartment with the exhaust running underneath... I will have to watch temps of dcdc and mppt's carefully to see if this install will work this way. I hope I will not have to fit fans..

 

[Tuscumbia]

Update to my 16 Lishens 272 that I received in february. At the moment I test every single cell, the capacity is between 290,8 and 294,0 Ah. I already testet 8 of 16.

 

[Just John]

Update to my 16 Lishens 272 that I received in february. At the moment I test every single cell, the capacity is between 290,8 and 294,0 Ah. I already testet 8 of 16.

Much better than my Eve cells. Most tested to 275 to 280AH, but two tested below 270AH.