Anyone willing to share a good LTO supplier?

SystemsPlanet

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Oct 15, 2020
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I am looking to buy 100 LTO 40 or 45 Ah cells.

I need to find a supplier who is known for providing good cells
so I don't have to mess with shipping them back.

I also need a way to test them individually.

I was thinking about building 6S 12 volt packs
and stack them to get 48 volts.
Probably use 4 in parallel to get a total of 6 x 4 x 4 = 96 cells

I was thinking
- I wouldn't need a BMSif I can get I can combine cells with similar internal resistance
- I would add a balancer to each 12 volt pack.

Is there anyone on this forum who is willing help
a newbe who is trying to DIY some LTO battery storage?

Anyone?

I reached out to Craig, but he wasn't willing to share his supplier because
"I literally spent over a thousand dollars trying to find a good one".

Mike
 

Korishan

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Gonna be tough finding LTO cells, especially if you want new ones.
Any specific reason why you want/need to go with LTO specifically? You could go with LiFePO4's and get pretty close performance, and cheaper overall in the end.


btw, your link goes straight to a login page (at least for me)
 

SystemsPlanet

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Oct 15, 2020
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I'd be OK with lightly used ones if they meet specs.

I want LEO'S because
- they last forever (at least longer than me)
- they work in any temp
- they are practically indestructible (you can under charge them to zero or over charge them without destroying them)

The only negative for me is the weight, but I will never move them once in place, so that is not a problem.


Thanks for replying.
 

hyperborean1

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Oct 14, 2018
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I'm building packs for remote off-grid, that need to be reliable.
So we've been getting cells from suppliers that sell them to car stereo enthusiasts. Showtime Electronics is one supplier.
They're XS-Power rewraps of 40Ah Yinlong, not brand-new but still decent grade cells.
If you want to get in on a group buy, get on the facebook group 'yinlong only'.
 

Overmind

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LTOs had a problem last time I checked: high self-discharge rate.
 

completelycharged

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Overmind said:
LTOs had a problem last time I checked: high self-discharge rate.

They have very, very low self discharge. I have had one stat on a shelf (shed) for a year and it still had the same voltage....

My supplier was in China - check my build thread, they are listed but I can't remember them off hand at the moment.
 

Overmind

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Same voltage does not mean capacity is maintained.
A capacity test after 1 year would be most relevant.
 

OffGridInTheCity

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@DIY Solar Power with Will Prowse just did an update on LTOs with good discussion and several pros/cons that I found interesting.
"I was wrong about Lithium Titanate batteries. But should you use them for solar? 2020 Update"

 
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SystemsPlanet

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Oct 15, 2020
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@DIY Solar Power with Will Prowse just did an update on LTOs with good discussion and several pros/cons that I found interesting.
"I was wrong about Lithium Titanate batteries. But should you use them for solar? 2020 Update" -https://youtu.be/iOBSxEqXUQc
Saw it. I appreciate that Will admits when he is wrong.
I don't like his "calendar age" FUD.

LTO is much cheaper than LiFePO4 when you look at the cycles you get with LTO
 

prepared1

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Jan 17, 2021
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Many of the cells on the market have been sitting for years, especially those coming out of cars. For example, the Honda Fit batteries. Also, how many projects get started, batteries are purchased, stuff happens and the project is delayed? I think LTO is a very interesting chemistry, but it has to fit your use. Have you checked out Kokam?
 
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