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Develop ultra capacitor power supply and LiFePO4 battery power supply
Develop ultra capacitor power supply and LiFePO4 battery power supply
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Old 22nd April 2019, 05:55 AM   #541
ofswitched is offline ofswitched  Taiwan
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Join Date: Feb 2018
A video showed a parked Tesla Model S exploding without the charging in Shanghai.

A video showed a parked Tesla Model S exploding in Shanghai — Quartz

A device containing LifePO4 will explode if it is short-circuited for unknown reasons. So be very careful when using the LifePO4 power supply.
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Old 22nd April 2019, 06:47 AM   #542
ofswitched is offline ofswitched  Taiwan
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Quote:
Originally Posted by Greg Stewart View Post
First a DUH on my part... I thought @supersurfer's question was how to keep all of the outputs of the LiFePO4 board on all the time, not just the 5V one. That's one of the hazards of glancing at a message on one's cell while doing something else. SORRY!

@Offswitched, you read into my comments something I did not say. What I was describing was that Ian COULD enable a board-switching option via firmware. This would be where 2 of his LiFePO4 supplies could have their outputs parallelled and controllers connected. When you switched the pair on, one would be connected to the output for a pre-set time or lowest cell voltage cutoff point, then swap to the other. The unconnected board would charge. This would be a way to enable an always-on mode with his LiFePO4 supplies, though at the cost of a 2nd board and cells.

IF Ian enabled this and one was using it, in the very small chance that a relay stuck connecting a cell to the output, you could connect a fully charged cell or cells to a partly discharged one. That is a very remote possibility for something it cannot already do.

I did not say what you suggested and don't appreciate you twisting my words to fit your agenda

I appreciate and share your concern for safety with this system. AND I really appreciate your inputs on getting the best sonics out of Ian's GB gear. BUT I don't appreciate you taking my comments and misinterpreting them to say something I did not, but that fit your notions of what Ian should do.

I also don't appreciate (and suspect Ian and others here also don't appreciate) you pushing a competing solution in this thread about one of Ian's GB products... and also in his GB thread. That is very impolite and inappropriate. Please don't do that.

AND please keep contributing on how to get the best sonics out of Ian's GB gear.

Respectfully,

Greg in Mississippi
I didn't push a competing solution in this thread, and there is no competing solution, because no one except Ian sells the complete LifePO4 power supply solution for the audio in the world.

If you don't like me to mention someone else's module, I won't mention it, although many people have mentioned other people's modules.

However, I still think Ian is quite risky for selling the LifePO4 power supply solution. Even if it is a very good power supply, LifePO4 is very dangerous, so far no audio manufacturers dare to push products. I have only figured this out until recently. Audio manufacturers' revenues are too small to afford the possible disasters caused by LifePO4, even if the probability is low.

Following this idea, I found that there are semi-finished products which they are not a competing solution for the audio. It can be combined to form a LifePO4 power supply solution, and they are all long-tested modules for safety. So I only shared it and provided it for reference. If sharing is not allowed in diyaudio's thread, I don't know what the meaning of diyaudio exists? Diyaudio becomes just a commercial store?

Taobao sellers no one is willing to sell LifePO4 power supply solution for audio, because if for safety reasons, the internal resistance of LifePO4 power supply may not be too low making LifePO4 power supply not much advantage. From this point of view, in fact, Ian's LifePO4 power supply solution is actually no competition solution, even Taobao sellers are curious to buy Ian's LifePO4 power supply, which is currently under study.

Last edited by ofswitched; 22nd April 2019 at 07:12 AM.
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Old 22nd April 2019, 07:34 AM   #543
Raj1 is offline Raj1  United Kingdom
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I’d suggest leaving Taobao and the intention of people from that site out of this thread. It isn’t helping anyone.
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Old 22nd April 2019, 09:19 AM   #544
Raj1 is offline Raj1  United Kingdom
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Quote:
Originally Posted by Raj1 View Post
I’d suggest leaving Taobao and the intention of people from that site out of this thread. It isn’t helping anyone.
I think I was a little too reserved in my initial comment. The more I read the paragraph below, the more it wreaks of someone who has a vested interest or would purposely like to point out that Ian’s design is being copied and may be sold elsewhere. When all the other posts this person has made in the thread are considered (such as complaining about price), the comment below appears to have a sinister motive.

Quote:
Originally Posted by ofswitched View Post


Taobao sellers no one is willing to sell LifePO4 power supply solution for audio, because if for safety reasons, the internal resistance of LifePO4 power supply may not be too low making LifePO4 power supply not much advantage. From this point of view, in fact, Ian's LifePO4 power supply solution is actually no competition solution, even Taobao sellers are curious to buy Ian's LifePO4 power supply, which is currently under study.
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