That’s a compliment that you noticed…it’s a good word…hey,
why you keep saying wow, that's the 2nd time!
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Mortons on the Move LiFePO4 Battery Comparison
- Thread starter Will Prowse
- Start date
…
ScrotpusGobbleBottom
Corn Pop was a bad dude.
No way! hahahah
Haaa …that’s a badge of honor… if ya ain’t ever been in a good fight ya ain’t lived..
WorldwideDave
New Member
Wow that's a reply. Comes off a bit troll-like, but you back it with facts. I'm not going to watch his video either way. What compelled you @Will Prowse to even engage with this YouTuber? Was he trashing you? Is this an east coast/west coast beef in the DIY solar world?
Andrewr05
[Replicant 42069]
Why wouldn't you call out obvious bullshit if you see it?
WorldwideDave
New Member
Someone posted that he did mention Will Prowse in his hour long video. So I supposed a response was in order.
Boron
New Member
@Will Prowse for President guys
HarryN
Solar Addict
I did a fair amount of testing of charging / discharge on the battleborns to qualify them for a product I was building at that time.
The valence I was originally using were better, but for simple projects, the BBs were perfectly fine.
I am a big fan of cylindrical cells, especially for mobile applications. Just in general it is easier to prevent heat build up than a prismatic cell. Tesla has shown that cylindrical cells can have major advantages - essentially zero recalls for their battery packs compared to a lot of recalls related to prismatic cells in auto applications.
What is up in space - prismatics or cylindrical - usually cylindrical.
Didn't GM have to recall a bunch of prismatic packs even after massive testing ?
Personally I will not use prismatics in a project no matter who is promoting them. Possibly Lithionics because of the metal case, but otherwise, I will pass. Obviously, others disagree and I am fine with that.
The big mistake people make wiring 12 volt batteries in series to make 48 volt packs is that they don't take the time to properly charge / discharge / charge each one in a precision way to make a matched set first. I have lots of 24 and 48 volt packs made from Lifeline AGMs and BBs and they stay in balance for years in mobile applications.
I agree that it would be nice to have at least a TTL signal for warning when the BMS is about to trip, but a good quality shunt solves most issues with SOC monitoring other than people who are addicted to watching graphs all day.
For people who don't really do testing to really qualify a battery for a project, it is easy to under estimate just how much time and effort it takes to quality a battery. Electronics are supposed to be run at a fraction ( 50 - 60% ) of their max continuous rating. System designs that are running at nearly max continuous rating are not fundamentally reliable.
In other words - most of the all in ones.
I suppose if your time has no value, then you can use any battery that you like and just accept lots of customers calling. Most business owners want as few phone calls / complaints as possible, as it destroys your brand and your profits. Spend a day on a problem and drag a few more people into it and that is $1000s being spent on an avoidable problem.
The valence I was originally using were better, but for simple projects, the BBs were perfectly fine.
I am a big fan of cylindrical cells, especially for mobile applications. Just in general it is easier to prevent heat build up than a prismatic cell. Tesla has shown that cylindrical cells can have major advantages - essentially zero recalls for their battery packs compared to a lot of recalls related to prismatic cells in auto applications.
What is up in space - prismatics or cylindrical - usually cylindrical.
Didn't GM have to recall a bunch of prismatic packs even after massive testing ?
Personally I will not use prismatics in a project no matter who is promoting them. Possibly Lithionics because of the metal case, but otherwise, I will pass. Obviously, others disagree and I am fine with that.
The big mistake people make wiring 12 volt batteries in series to make 48 volt packs is that they don't take the time to properly charge / discharge / charge each one in a precision way to make a matched set first. I have lots of 24 and 48 volt packs made from Lifeline AGMs and BBs and they stay in balance for years in mobile applications.
I agree that it would be nice to have at least a TTL signal for warning when the BMS is about to trip, but a good quality shunt solves most issues with SOC monitoring other than people who are addicted to watching graphs all day.
For people who don't really do testing to really qualify a battery for a project, it is easy to under estimate just how much time and effort it takes to quality a battery. Electronics are supposed to be run at a fraction ( 50 - 60% ) of their max continuous rating. System designs that are running at nearly max continuous rating are not fundamentally reliable.
In other words - most of the all in ones.
I suppose if your time has no value, then you can use any battery that you like and just accept lots of customers calling. Most business owners want as few phone calls / complaints as possible, as it destroys your brand and your profits. Spend a day on a problem and drag a few more people into it and that is $1000s being spent on an avoidable problem.
Brucey
Solar Wizard
Tesla are using LFP prismatics in some model variations.
damn solar gang wars? finally some excitement
And only cylindrical li ion cells as that was the tech could support for the design criteria when the S came out.
I believe Tesla is using LiFePo as an economic choice not a performance choice.
Other than battle born, what other off the shelf unit is using cylindrical LiFePo cells?
I doubt many as it's much harder to prevent bloating
Alkaline
Solar Wizard
Brucey
Solar Wizard
Yes the energy density is less so the lfp packs are larger/heavier for a given capacity.
Boron
New Member
AFAIK Cylindricals dont suffer bloating like prismatics? - Assuming normal operation say within <1C
RV8R
Solar Enthusiast
Caveat Emptor;
This old video has a marketing idea that I agree with;
I basically;
1) Research as best I can
2) Take a Chance & Buy Stuff
3) Test it out myself
4) If it is a Great or Good Product I tell people about it
5) When in the future I need another “thing” I research & keep in mind the experience I had with the past Great products I have purchased
Seems the Japanese Way
.
If I have a crappy product or customer experience, I most likely will pass up on ever buying that brand or thing again.
Lots of Influencers out there on the Internet these days;
This old video has a marketing idea that I agree with;
I basically;
1) Research as best I can
2) Take a Chance & Buy Stuff
3) Test it out myself
4) If it is a Great or Good Product I tell people about it
5) When in the future I need another “thing” I research & keep in mind the experience I had with the past Great products I have purchased
Seems the Japanese Way
.If I have a crappy product or customer experience, I most likely will pass up on ever buying that brand or thing again.
Lots of Influencers out there on the Internet these days;
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Quite possibly, I've used 18650's for years and never seen one bloat I was just guessing as a cylinder would be much harder to mechanically constrain without turning it into a bomb.
Great analogy ..not only is the rhetoric ramping up ,so is the hardware…Yeow..
Attachments
Boron
New Member
There is less noise if you think first
I agree with this and I am going through the same agony right now with CIGS panels.
I have researched so many videos (mostly about the BougeRV CIGS) and EVERY SINGLE ONE the person has been given the panel for free and has a affiliate link or code. Nobody is giving what I feel to be an honest review addressing one of the key issues, the durability of the thin coating protecting the CIGS material from corrosion.
I may eventually still purchase these, because my sailboat needs require extreme flexibility, shade tolerance, lightweight, and compact storage. When and if I do, I will make the unbiased full review video of a panel purchased with my own money, no affiliate links, no patreon begging. It will probably garner 23 views, 11 of which will be from me. But it will be technical, honest, and real.
hardtop
New Member
There is a lot of dissapointment on YT. Take the superman car reviewer guy for example. He reviewed a Hummer H1 and a Corvette and he absolutely sucked. But everyone loves him so it doesn't matter if he is correct or not.
Boron
New Member
On here with mentoring from our Guru WP we try not to become SUCKERS. Sincerely spread your experiences honestly here (YMMV) and strike down the morally bankrupt posters that reek of commercial bias and ignorant BS.
May the sun shine upon your endeavours
May the sun shine upon your endeavours
Got another video. He destroyed the fet banks with high voltage so I thought he was going to test over charging the packs. But instead he did a puncture test. What a bummer. I was really hoping he would overcharge them.
I'm very confused.......why a welding mask? and is it me or is trying to put out lithium fire by pouring water on it not a very stupid idea maybe he's unaware the reason the fire happens in the first place is the oxygen which seems like something you should definitely know when cutting opening lithium batteries.
Also the battleborn still working, is stupid it's a bank of parallel cells in series it's obviously still going to work, I'm a complete idiot and I understand the science behind that.
I'm not clicking any more of your video links now unless their actually yours Will they're giving me a false sense of intelligence, I'm wondering how someone can't understand how a 7oz cylindrical cell doesn't gas as much as 170 Oz prismatic.
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