LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Batteries, Chargers, and Battery Management Systems.
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Inwo
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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 21, 2017 7:37 pm

SamRich wrote:
Dec 20, 2017 8:04 pm

However, the BMS has no balancing function (could not find any that did)

There are smart lto bms with balancing. Bluetooth and lcd display.
Up to 32s 300 amp.
I use the 24s version, and have a few extra. A 32s is on the way for testing.

Also, Chargery new products. 50010b is updated for lto. Need to use 3pcs or 3 times.
32s lto smart.jpg
32s lto smart.jpg (187.72 KiB) Viewed 834 times
Lots of 11ah pouches left.
I can possibly weld them in modules.
1000 - 53ah sold out in a week.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by SamRich » Dec 22, 2017 8:45 am

Inwo wrote:
Dec 21, 2017 7:37 pm
SamRich wrote:
Dec 20, 2017 8:04 pm

However, the BMS has no balancing function (could not find any that did)

There are smart lto bms with balancing. Bluetooth and lcd display.
Up to 32s 300 amp.
I use the 24s version, and have a few extra. A 32s is on the way for testing.

Also, Chargery new products. 50010b is updated for lto. Need to use 3pcs or 3 times.

32s lto smart.jpg

Lots of 11ah pouches left.
I can possibly weld them in modules.
1000 - 53ah sold out in a week.
Very nice! thanks...they are not easy to find...Aliexpress search function sucks...

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 22, 2017 1:17 pm

My new fav. may be the Chargery C4012B 12s balance charger.
Preliminary specs in another thread.
Web search show many are looking for high cell count balance chargers.
That's why I worked with Jason to expand his line. Many more new products in design.

I have big plans for it if works as expected.
One of which is charging 33s 65ah-130ah lto battery.
At 40 amps I may use it 3 times for occasional top balance. Or maybe all the time!
Use 72v Delta-Q for normal bulk charge.
At well over $300 using 3 of them may be out of the question. But as it replaces all my chargers and bms/monitors, who knows?

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by MoonBassMan » Dec 22, 2017 2:12 pm

This has sparked my interest in LTO cells. I was not previously aware of these. Just finished some hours of researching them. I am interested in using LTOs in my current project bike. My alternative option is a 24s LiPo battery pack. Could someone point me in the right direction to build/purchase an LTO pack? The durability and safety of LTO is very appealing.
My build: https://endless-sphere.com/forums/viewt ... =3&t=84738
If I knew ES would remember account creation time, I would have waited 7 more minutes...

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by SamRich » Dec 22, 2017 4:26 pm

MoonBassMan wrote:
Dec 22, 2017 2:12 pm
This has sparked my interest in LTO cells. I was not previously aware of these. Just finished some hours of researching them. I am interested in using LTOs in my current project bike. My alternative option is a 24s LiPo battery pack. Could someone point me in the right direction to build/purchase an LTO pack? The durability and safety of LTO is very appealing.
The very most you can fit on a bike is probably 11Ah cells. I have only seen 2.4Ah, 11Ah, 20Ah and greater
20Ah is way to big unless you go 24V - 36V.
So the first question is, will that few Ah be sufficient? With Lipo you would get 3X the Ah/range and comparable output for about the same weight.
I have a link above on where i bought my cells on Ebay (member INWO), I don't know of any pre-built packs.
INWO might be able to build you one?

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Buk___ » Dec 22, 2017 9:29 pm

SamRich wrote:
Dec 22, 2017 4:26 pm

I have a link above on where i bought my cells on Ebay (member INWO), I don't know of any pre-built packs.
I've been up and down the thread and didn't find an ebay link?

Also did an ebay advanced search for anything by seller "INWO" and it says he doesn't exist?

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by SamRich » Dec 22, 2017 9:58 pm

Buk___ wrote:
Dec 22, 2017 9:29 pm
SamRich wrote:
Dec 22, 2017 4:26 pm

I have a link above on where i bought my cells on Ebay (member INWO), I don't know of any pre-built packs.
I've been up and down the thread and didn't find an ebay link?

Also did an ebay advanced search for anything by seller "INWO" and it says he doesn't exist?
Sorry, Rereading that i see how that was not clear. its ES member inwo...he posted above. He sells on ebay just search jor 11ah lto cells or pm him on ES.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 22, 2017 10:06 pm

Look for barbjb on eBay.
Email is the same. Domain is acegroup,cc..

Don't know if the biggest advantage has been discussed.
Storing dead. I've had batteries that were less than .5v for many years. Come back to 100% capacity.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Buk___ » Dec 22, 2017 11:04 pm

Inwo wrote:
Dec 22, 2017 10:06 pm
Look for barbjb on eBay.
Okay. That turns up 3 items: 100Ah gbs lithium batteries; Golf cart; parallel harness for Volt.

I'm coming into ebay.co.uk; could that be the problem?

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by SamRich » Dec 22, 2017 11:21 pm

Buk___ wrote:
Dec 22, 2017 11:04 pm
Inwo wrote:
Dec 22, 2017 10:06 pm
Look for barbjb on eBay.
Okay. That turns up 3 items: 100Ah gbs lithium batteries; Golf cart; parallel harness for Volt.

I'm coming into ebay.co.uk; could that be the problem?
Try this : https://m.ebay.com/itm/Lithium-Titanate ... SwH3hZ9fjR

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Buk___ » Dec 22, 2017 11:31 pm

Thanks. That finds the right thing, but... "May not ship to United Kingdom" ... "Ships to:United States" and "The seller has not specified a shipping method to United Kingdom. Contact the seller- opens in a new window or tab and request shipping to your location." which probably explains why my .co.uk searches didn't find it ;(

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by SamRich » Dec 23, 2017 12:03 am

Buk___ wrote:
Dec 22, 2017 11:31 pm
Thanks. That finds the right thing, but... "May not ship to United Kingdom" ... "Ships to:United States" and "The seller has not specified a shipping method to United Kingdom. Contact the seller- opens in a new window or tab and request shipping to your location." which probably explains why my .co.uk searches didn't find it ;(
Check out aliexpess there's a few sellers on there.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 23, 2017 12:39 am

https://endless-sphere.com/forums/viewt ... 31&t=91735

I have no way to ship out of conus.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Buk___ » Dec 23, 2017 1:08 am

Inwo wrote:
Dec 23, 2017 12:39 am
https://endless-sphere.com/forums/viewt ... 31&t=91735

I have no way to ship out of conus.
Understood. If you could, it would obliterate the price advantage.

("conus" Continental USoA?)

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Buk___ » Dec 23, 2017 1:22 am

SamRich wrote:
Dec 23, 2017 12:03 am
Check out aliexpess there's a few sellers on there.
Thanks. I did look before, but only found the huge 20ah mothers that weight 650g each.

This time I found some 12Ah at 340g.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 23, 2017 1:43 am

Checked again.
Flat rate 20lb is $90
I could see what eBay charges. It would cost $20 to send about 15 pcs to shipping center.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 23, 2017 1:51 am

Check it from UK.
EBay sets the price.
https://www.ebay.com/itm/232531107327

Each is 13oz
I listed 1 pc at 1 lb.
It should let you select 20pcs. I have no idea how it works.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 23, 2017 1:56 am

No savings. Same $90.
I will have to change the weight before someone buys 20pcs. They won't fit. :D

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Buk___ » Dec 23, 2017 2:06 am

Inwo wrote:
Dec 23, 2017 1:51 am
Check it from UK.
EBay sets the price.
https://www.ebay.com/itm/232531107327

Each is 13oz
I listed 1 pc at 1 lb.
It should let you select 20pcs. I have no idea how it works.
Yeah. Way more than doubles the price:
Subtotal (15 items):
$127.50
Shipping to GB
$173.90
Total:
$301.40
But thanks for trying :)

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 23, 2017 5:56 am

Go back one piece. 15pcs needs two boxes.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Buk___ » Dec 23, 2017 6:40 am

Inwo wrote:
Dec 23, 2017 5:56 am
Go back one piece. 15pcs needs two boxes.
That makes a huge difference:
"Subtotal (14 items):
$119.00
Shipping to GB
$86.95
Total:
$205.95"

Hm, 14*2.4 = 33.6. Ponder, ponder...

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Inwo » Dec 23, 2017 10:15 am

I hope I'm not just teasing you. :(
I guessed at the 14 fitting.
If you get serious, I'll have to test fit them. It may only be 11 or 12 fit. Normally I don't ship out of states. Testing the waters for members.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by SamRich » Dec 23, 2017 10:54 am

Buk___ wrote:
Dec 23, 2017 1:22 am
SamRich wrote:
Dec 23, 2017 12:03 am
Check out aliexpess there's a few sellers on there.
Thanks. I did look before, but only found the huge 20ah mothers that weight 650g each.

This time I found some 12Ah at 340g.
Like I said above. Aliexpress search engine sucks. I use Google search:

"Lto cells 12ah site: aliexpress.com"

https://www.aliexpress.com/item/5pcs-Li ... 78708.html

Sorry INWO, not trying to take away your business, but it sounds like you might not be able to ship to EU anyway...

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by amberwolf » Dec 23, 2017 2:58 pm

He shouldn't be posting about his business here anyway.

That sort of thing (self-promotion of any kind) belongs *only* in the Online Market section, per the rules.

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Re: LTO Lithium Titanium Oxide (Titanate) Battery 30S - Seeking the Ultimate Commuter Battery

Post by Sunder » Dec 23, 2017 6:27 pm

I bought from OSN on Alibaba. They bent over backwards to get me the right shipping, and every cell was 5-10% under rated (i.e. every 30ah cell was between 31.5 and almost 33ah.)

I would love to place a big order with them at the moment, but since the only use I had for them was an off grid holiday home, and they didn't fit in my motorcycle, I couldn't justify any more. If anyone is Aus is keen on doing a group buy, I can arrange. It was $44usd per unit landed for cylindrical 30ah cells, but I can get couple bucks off for larger quantities.
eBike: Q100H on 16S with Phaserunner FOC Controller
eMotorscooter: Vectrix VX-1 on 36S
eCar: Mitsubishi Outlander PHEV... Waiting for warranty to expire
eHouse: Still on grid, but with LTO batteries and 3kw LF inverter...

After 5 builds, the best advice I can give, is start with high quality products. I prefer http://www.ebikes.ca

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