diy solar

diy solar

LTO battery build with latest tech and teachings for offgrid solar

I'd like to see what you come up with. Sounds like a good idea could get full capacity with any risk.
I also in progress to build a LTO for another purposes (car starter battery)
My plan is to use protection board of Super capacitor to regulate the charging voltage....
Afaik the protection board will be limiting the maximum voltage but there is no current regulating....
And since it using TL431, there is possibility to "adjust" the target voltage output by change the value of resistor R1 and R2..
 
I bought a bunch of lto cells built into a system that were rejected for being sold built a bank out of them but have extra solenoids for a diy bms which only needs to be over voltage over temp and maybe low voltage if you wanted to would be a nice arduino project here's the specs Zeigler azdc105-1a-12d 100amp 48v dc if anyone wants them free just cover shipping let me know I save them for awhile then toss them
 

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I also have a 6S LTO Battery (40 Ah Yinlong) in my car. I use it without protection or balancing.
It works well for half a year already. But it is everything else than professional ?
My car battery died and a needed a quick replacement.

View attachment 82913View attachment 82914

I use it in a Volvo XC70 from 2009, drive e version.
Longterm, I want to replace the 40 Ah Yinlong cells with smaller 15 Ah or 20 Ah cells an place them into a closed battery box.
This is awesome! I suspected you could do it without a bms. Can you provide any other info? What voltage are they charging at? Is your car a smart alternator?

How has this held up?
 
If someone is looking for a LTO supplier, you may avoid these yello LTO cells that looks like capacitors made by Hunan Huahui New Energy Co. They don't seams to be real LTO, and they sell me BMS included battery packs, but these BMS were only shunt resistor that dessipate heat. No min or max voltage cut off.
I've been ripped off. No replacement or refund after few month of debating. Buyer's beware !
 

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