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Cannot comment on the quality of the cells. I would say to expect mediocre. Do not rely on it for life-critical application. At the end of the day, it is a 100ah LiFePo4 battery for under $250.
12V 100Ah Lithium Iron LiFePO4 Rechargeable Deep Cycle Battery $247.20 ($241.02 eBay Plus) Delivered @ Outbax eBay
81
BuyoTheCat on 22/11/2023 - 14:09 ebay.com.au (335 clicks)
Last edited 27/11/2023 - 11:19 by 2 other users
Last edited 27/11/2023 - 11:19 by 2 other users
This is part of Black Friday / Cyber Monday deals for 2023
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that LiFe
Steel is an alloy. This battery does not need any of that.
Do your homework before highlighting
Steel is an alloy of iron…
FTFY
I can see I have to speak a bit slower for this audience.
Just because steel has iron in it, it does not mean that iron is steel.
Only the very challenged would call iron steel, but among these, only the full retard would call LiFePO4 steel.
Anyways, here is your participation award, you can sit down now.
i think you missed the joke lol
It’ll burn just as well as the rest of’ em ;)
that's where the value comes in!
25A discharge current! Is the BMS out of a cordless drill?
to be fair, Max. Continuous Discharge current is more important.. but its 50 A which still sucks
I have tested 4 of a similar type as these from outbax, they are shit and capacity was blatant lie
Outbax are decent to deal with if you want to have a punt though
best value cheap lith that has real capacity that I have found is voltxwhat capacity did you get from your test?
they were claimed as 100ah and I got 60-65ah from memory (was many years ago) they were branded as "real capacity" with very similar styling as that picture
I still have this for 4 years now and still going strong, been charging it with 1x spare solar panel (taken from the roof after insurance claim) and solar controller from Amazon. good item.
Solar controller: https://www.amazon.com.au/gp/product/B084MCXYTJ/ref=ppx_yo_d…
lol, apparently I am banned from buying from the store.. Not a clue why
*Edit, it was because I complained about a solar panel sold by one of their many accounts not meeting advertised ratings. Probably don't complain when this doesn't meet its capacity rating of 100ah, which it almost certainly wont. Several reviews have stated subpar performance.
They had a reputation among 4WD and caravan groups for selling massively over-rated Chinese solar panels a few years ago. May have sourced better products since but trust is hard to recover.
Took a punt on the 110ah version … also priced @ $241 with Plus.
Capacity test of 75AH, 75% capacity is not good and very much against what they are claiming
https://www.youtube.com/watch?v=rphmv6wMQbk&ab_channel=VESAu…
The second test only managed 55AH…
https://www.youtube.com/watch?v=HffR3wE9WLc&t=366s&ab_channe…
Someone here did a teardown a while back also, it contained pouch cells, not prismatic:
https://www.ozbargain.com.au/node/723192#comment-12638775So the cells were 60AH internally, as that is what is printed on those pouch cells.
So it would have been a 4S1P configuration, as in 4x 60Ah pouch cells in series and none in parallel.
Frankly if they are pouch or prismatic or cylindrical doesn't bother me, its about the quality of those cells… cylindrical cells are by far the most expensive to make as they are in a proper metal shell etc, Tesla/Elon Musk don't use cylindrical cells only in their cars just for the fun of it, it's bcos they perform the best and most reliably.By FAR the most annoying thing I found about these batteries is that MOST don't list their internal cell configuration. Ideally I want 4S4P battery packs for a total of 16cells, this way when I decide I want to I can deconstruct the pack and test the cells and rebuild the battery pack to be as high as 51.2v = (16 cells x 3.2v) etc
I don't know… I was kinda assuming 4s2p with either low grade cells that weren't actually 60Ah, or recycled cells that were down to 80%, which would equate to around 100Ah which that battery claimed to be… Guesses…
(edit: My concern is that they may be recycled cells, most lithiums drop off a lot faster once they get below 80%, so if they are recycled they're likely to have a relatively short life span. Original capacity 120Ah, 100Ah now, 80Ah in a year, useless in 2 years, or such )
According to the articles I read Tesla were moving to cylindrical cells in their Beijing factory in late 2021 because they were cheaper to make and buy. 5 years ago that wasn't the case. USA made Tesla's were/are (?) still using pouch batteries.
The quality of the pouches is the issue for this battery and like many sellers (of all LFP configs), Outbax doesn't state the details. Yet another area of poor govt regulation.
I dont trust Lithium batteries especially when you hear the house fire was caused by a Lithium battery on charge.
LiFePO4 chemistry (as used in these storage type batteries), is pretty safe, they very rarely light up, even the cheap crappy ones very rarely light up… If they're punctured, they tend to just vent gas and goo, they dont go up in flames…
You're thinking of the 18650/21700 style Li-ion batteries used in e-bikes/scooters and car battery packs, they do go up in flames when abused, and the cheapies are prone to lighting up…
Once you get this cheap, the electronics themselves are a fire hazard concern…
Yes and no, components just go pop, let out a bit of smoke, they rarely light things up…
That said, personally I wouldn't use one of these low grade cheapies, more due to capacity and reliability concerns, but I don't think they're much of a safety risk…
True, this one using Li Iron, the one for electric scooter Li ION (scary)
I believe technically LiFePO4, (LFP, Li-Iron), are also a Li-ion battery, which makes it a bit hard to explain the differences, which is why I usually mention "18650/21700 style Li-ion batteries used in e-bikes/scooters and car battery packs", to try and differentiate them, rather than just calling the less-safe ones as "Li-ion"…
The "Li-ion" name covers a stack of different chemistries…
https://en.wikipedia.org/wiki/Lithium-ion_battery
I dont trust cars especially when you hear cars are involved in car accidents.
The problem with the li-ion cells used in e-bikes/scooters/cars is they have a very high energy density, it makes them a bit touchy, the Lithium Iron LiFePO4 chemistry density is significantly lower, it makes them much safer….
You are referring to thermal stability and low tendency for thermal runaway.
Not much to do with energy density.@glade90: Well, LiFePO4 batteries aren't used in electric vehicles due to their low energy density, they'd be too big and heavy… The higher the energy density the higher the risks, is my 'basic' understanding…
@FLICKIT: You are saying correct things, just the conclusion is overall not complete.
You are right that LiFePO4 has lower energy density compared to LiIon and LiPo (although not by much, and varies by quality, but still, it's overall true).
You are right that they are safer than the other two.
You are right that electric vehicles use LiIon.However, even old LiIon batteries with relatively low energy density, compared to modern LiFePO4 batteries, are fire hazards, and not because of the energy density, but because of low thermal stability and tendency for thermal runaway.
@FLICKIT: You do realise that Tesla standard range vehicles have been equipped with LiFePO4 batteries for some time now….
Here's the kicker, the majority of EVs with Li ion batts are only recommended to charge to 80% for longevity but LiFePO4 can be charged to 100% without any detrimental effect to life. This almost negates the lower density for LiFePO4 batt equipped cars, not to mention the stability and lower costs.
Cheers bz , call me a glutton for punishment … could not resist.
What a steel…