12v lithium battery LTO 6s* 11ah LTO cells

Place for dealers to post items for sale.
Post Reply
User avatar
Inwo   10 kW

10 kW
Posts: 583
Joined: Dec 13 2016 12:01pm
Location: SE MN. USA

12v lithium battery LTO 6s* 11ah LTO cells

Post by Inwo » Feb 03 2018 4:10pm

Series connected for 12v 9v-16v

100a charge/discharge at 12v nominal
5lbs
5" x 8.25" x 2"h plus tabs

Kit with welded tabs and 100a al/cu terminals

$60.00. +s&h
MVC-012F.JPG
MVC-012F.JPG (60 KiB) Viewed 1370 times
11ah LTOsmall.jpg
11ah LTOsmall.jpg (205.43 KiB) Viewed 1370 times
MVC-013F.JPG
MVC-013F.JPG (59.7 KiB) Viewed 1370 times

2 pcs 6p1s pack sample 66ah $75.00 each section 6p.
MVC-010F.JPG
MVC-010F.JPG (74.16 KiB) Viewed 1370 times
Last edited by Inwo on Feb 19 2018 1:14am, edited 2 times in total.

kinghappy   1 µW

1 µW
Posts: 4
Joined: May 05 2015 2:01pm

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by kinghappy » Feb 07 2018 3:04am

i use 12 of these to start my muscle car . 6s2p . weighs 10 lbs and replaced a 41lb battery . These things are incredible

User avatar
Inwo   10 kW

10 kW
Posts: 583
Joined: Dec 13 2016 12:01pm
Location: SE MN. USA

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by Inwo » Feb 19 2018 12:46am

s-l1600-9.jpg
s-l1600-9.jpg (40.8 KiB) Viewed 1189 times

User avatar
Inwo   10 kW

10 kW
Posts: 583
Joined: Dec 13 2016 12:01pm
Location: SE MN. USA

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by Inwo » Feb 19 2018 1:01am

12 pcs fit in an ammo box.
Make a 2p6s 12v jump box.
Tested to 300a surge. (200a rated)
22ah 1v-16v no overcharge worries in automotive applications.
This configuration is starting big block blown race engines.

12 cells $100 delivered conus.

Custom sonic welded pack with 100a copper terminals. $150.

Other configurations get difficult to ship. ie. Over 12 cells.
Will make modules, up to 6p1s can be welded.

These are far superior in every way to lifepo4.
Safer and run and store dead capability.

Just tested some 10s 24v 60ah modules retrieved from storage.
.9v total voltage to start. At 18v were within 7mv.
Total charge first cycle 75ah. .09v to 2.7v/cell.
First discharge 2.7v to 2v @ 25a was 70ah.

User avatar
Inwo   10 kW

10 kW
Posts: 583
Joined: Dec 13 2016 12:01pm
Location: SE MN. USA

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by Inwo » Feb 19 2018 1:03am

JD battery1.JPG
JD battery1.JPG (78.78 KiB) Viewed 1185 times

Bolted potted version. Portable power box. This one is in my diesel mower.
Must to be the best $100 Battery available for your car or jump box.
Nib nos cells. >1k available. Start planning ahead.
Connection straps available. $2 each.
3 hole plated cu 8/32 threaded inserts.
"U" shaped hairpin.


This is 3p6s version using bolt method. Built unconfiguted 3p sections.
MVC-017F.JPG
MVC-017F.JPG (74.3 KiB) Viewed 1185 times

User avatar
Inwo   10 kW

10 kW
Posts: 583
Joined: Dec 13 2016 12:01pm
Location: SE MN. USA

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by Inwo » Mar 27 2018 10:56am

6s lto balancing. On at 2.7v off at 2.65v.
High current fast balancing makes heat.
2p6s battery shown in green battery box.

6s balance board.jpg
6s balance board.jpg (77.06 KiB) Viewed 1018 times
6s balance board1.jpg
6s balance board1.jpg (95.47 KiB) Viewed 1018 times
6s balance board2.jpg
6s balance board2.jpg (78.26 KiB) Viewed 1018 times
MVC-001F.JPG
MVC-001F.JPG (81.76 KiB) Viewed 1018 times
MVC-002F.JPG
MVC-002F.JPG (82.34 KiB) Viewed 1018 times

roadrancher   10 µW

10 µW
Posts: 5
Joined: Jun 07 2012 8:06pm
Location: Sonoma and Lake Counties, California.

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by roadrancher » Apr 05 2018 3:07pm

Hi I have been really busy so I didnt have a chance to explore your lto option i have a lot of projects in the 24 to 48 volt range. Two are golf cart controller based and upon proof of concept operation i anticipate your controller will most likely be a required upgrade. i also like the idea of true sine power for my construction tolls and have a 48 volt inverter for intermittent high demand tools. Plus the usual suspect... Bikes. Like to go with the bbso2 luna cycles for 3 or 4 bikes for my bros and I. So i guess im interested in your estimation of how compatible these packs are with more standard charging methods and algos. And if you can point me to some good links or configurations that would get from Ac. Solar or dc to a fully charged pack ready to roll. I like the idea of. 22ah 12v building blocks I think I could use those universally. And i expect to use your services if you prefer to sell then to configure packs. I may mold lexan cases and ship them to you! I want you to realise that some of us start admiring your work and dont get around to getting in touch with you roght away. Heres to doing some biz🐴

User avatar
Inwo   10 kW

10 kW
Posts: 583
Joined: Dec 13 2016 12:01pm
Location: SE MN. USA

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by Inwo » Apr 05 2018 9:53pm

Finding boxes is a roadblock. The green one shown is perfect for 12 cells.
Moq 2,000 and outrageous shipping cost. $2.50 each base price. I have $40 in that one sample.
In any case, I'm getting bored shipping cells <100 - at a time.
Need time for fun projects like the Bolt pack that just arrived.
Looking to sell pallets. I need the room and my retirement back. :D
I have a $3k ultrasonic welder for someone wanting to build modules. The market is established. My labor and hence prices for finished batteries are way too high.

roadrancher   10 µW

10 µW
Posts: 5
Joined: Jun 07 2012 8:06pm
Location: Sonoma and Lake Counties, California.

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by roadrancher » Apr 06 2018 1:21am

Ok, I will try and follow this out with you if you want. I got the feeling from reading your posts that you could not ship more than 12 at a time easily. I am a general contractor, I have been welding tpo lately and I am seeing these battery packs as a soft pack system inside of a hard trunk, like tpo or lexan 12v packs inside of a stainless bay. I have spent thousands on batteries at this point and I have reasons to not like any technology I have tried this far. I have lived way too close to the fires in california to want to store much stuff that goes whoosh or boom!
I totally respect your need for compensation, I was hoping to get my feet wet with the tech before going for pallets. I would love to sling pallets, and, during the blackouts in cali I was cruising with a battery and inverter suitcase that could pop a garage door open for instance, and I think I could tap a market with the right combo. So, tell me anything you want to that is worth your time to do, and I will think about it. Am I correct in understanding that you are needing to weld these packs to integrate them into any configuration, so, somebody gotta weld the aluminum tabs or there ain't product? I noticed you said there was a crossover aluminum to copper connector you had in bulk, I assume that's not crimp then.
And it sounds like you only want out of the game, don't want to build packs...
I drive a 20 mpg f250 turbo diesel, I'm in northern California.

User avatar
spinningmagnets   100 GW

100 GW
Posts: 10596
Joined: Dec 21 2007 10:27pm
Location: Ft Riley, NE Kansas

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by spinningmagnets » Apr 06 2018 3:01pm

Making connections for a 1P string should be easy, even doubling up on a 2P group would still be easy. My plan is to use a soft copper foil between the aluminum tabs to help ensure a good physical connection (Al-to-Al would still be fine). It might be unnecessary, but copper foil is cheap and I already have some. The outer clamping pieces will be thin steel bar. I'll try to post a pic this weekend. (similar to what Inwo posted above in the 6S potted battery)

All tabs will be covered at first. I won't be using sticky tape, because I don't want any glue-residue. I will only uncover each pairing of tabs as needed. After clamping together, they will be covered again before uncovering the next set. I only mention this because I don't think the welding system is a requirement. I am certain that the welding works well, but I am also just as certain clamped tabs work fine. The welder would be faster if you are building 20 packs or more, but I am only building one, or maybe three...

These might be able to start a 4-cylinder car by themselves, but as an experiment, I bought 15V worth of super-capacitors. I am still learning, but I have seen these SC's on youtube starting a car. Without an additional battery attached, they turned over a car for 30 seconds (when spark and fuel was disabled), plus they are compact and light.

I want a 12V battery that is easily portable for charging a cell-phone and laptop in an emergency (I already have a 12V solar panel in the closet), 12V outlet socket, and also several 5V USB ports. I hadn't thought about adding the car-starting ability until I saw the high-amps these were capable of, plus I stumbled across the super-capcitor videos. They seem a perfect match for LTO, since both should last decades.

I was also researching 4S LiFePO4 as a 12V pack, but I bought the LTOs as a fun experiment...If the SC's work as well as I hope they do, then I don't need high-amp batteries, and I will put the LTO's in a separate case for my son.

Cases are easy and affordable, thick plastic "field boxes" are available in a variety of sizes (they used to be called "ammo boxes"). Harbor Freight Tools (HFT) has heavy-duty suitcases in 3 sizes under the "Apache" brand.

https://www.walmart.com/ip/Plano-Sports ... n/23247620

https://www.youtube.com/watch?v=X5JUMMdJmds


roadrancher   10 µW

10 µW
Posts: 5
Joined: Jun 07 2012 8:06pm
Location: Sonoma and Lake Counties, California.

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by roadrancher » Apr 08 2018 2:16am

Hi Spinning Magnets seems there might be a negative dielectric effect there is a Dave on ebay selling same LTOs (Coincidence?) with a cad coated screw bar clamp which inspired me to get cad fender washers (cadmium has negligible dielectric with al )and then i added (to my cart) Noalox aluminum anti oxident paste used in ac breaker panels with aluminum bus bars. Also someone on EETimes.com testing LTO cells mentioned high recharge rates might be a cause for bimetallic junction failure. Gonna be a long time until thousands of cycles happen for me , so far no thing but a sledgehammer or such has been big on getting slammed Ive seen so I figure if there's one way in which a weld is better, this is it.

themelon   1 W

1 W
Posts: 57
Joined: Sep 14 2017 4:12pm

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by themelon » Apr 08 2018 2:17pm

Another pack case idea. 40mm grenade ammo can....
2018-04-08 14.01.48-small.jpg
2018-04-08 14.01.59-small.jpg
2018-04-08 14.01.59-small.jpg (189.24 KiB) Viewed 752 times

User avatar
parabellum   10 MW

10 MW
Posts: 2055
Joined: Nov 19 2010 9:55am
Location: Dominican Republic, north.

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by parabellum » May 01 2018 2:26pm

Thanks Inwo.

Received my 24 cells + connectors last week, my courier moved them by see shipping, so it took longer from my side, just yesterday looked in the boxes.
Nice packaging, cells look good all at 2.33V +0.003-0.001V, very pleased.

quantumcloud509   100 mW

100 mW
Posts: 41
Joined: Aug 27 2016 3:23am
Location: WA

Re: 12v lithium battery LTO 6s* 11ah LTO cells

Post by quantumcloud509 » May 01 2018 9:35pm

Pm sent

Post Reply