Hi,
I’ve used my ETs since 1980 and have always used good old lead acid with the on board chargers. I know nothing about this battery tech and hope you folks can answer some questions.

- Performance wise, since 4 sounds like the max, how would they stack up to (6) lead acid 235AH GC125s?
- Would there be issues with the on board charger or batteries because of the BMS? I’m not actually sure what the BMS does to tell the truth.
- I’m a bit confused with the size specs. The description states 13" x 6.5" x 9” while the dimensions in the spec sheet shows 21” x 12” x 17”. Bottom line is do 4 fit in the battery box or not?

Thank you all!

Regards,

Dean Stuckmann
5432 County Road U
Newton, WI 53063-9624

920-901-2288





On Nov 28, 2023, at 11:03 AM, Max Hall <maxmatic@gmail.com> wrote:

FWIW I have made two purchases from this outfit (2, then 4, mustang mach e modules) and it was a good deal and they did a quick and excellent job and the batts are awesome.

ALSO there’s a guy selling an Ionique pack on eBay… I have two identical ones and the quality is amazing. No internal BMS, but the economics might work

Go, ETs!

-Max

Sent from my iPhone

On Nov 28, 2023, at 11:49 AM, John Jeno <jjjeno@hotmail.com> wrote:

Spec sheet states a max of 4 in parallel.
What limits it to 4?
(I guess I'll keep two dead Pb t-150's as ballast.)
________________________________
From: Chris Zach via Elec-trak <elec-trak@cosmos.phy.tufts.edu>
Sent: Tuesday, November 28, 2023 4:58 AM
To: elec-trak@cosmos.phy.tufts.edu <elec-trak@cosmos.phy.tufts.edu>
Subject: Re: (ET) Lithium battery deal

That is not a bad idea. Won't last as long as NiCDs, but the voltage
setpoints live up closely with the big stupid charger and the operating
parameters of the E20.

Maybe I could put a few of these in the E15. Will check it out.

C

On 11/27/2023 10:31 PM, David Tiefenbrunn wrote:
I saw this tonight, 38.4V 60AH / 2.3KWhr Lifepo4 battery sale - Already
built, internal BMS.   Surplus never used overstock.   Might be worth
taking a look at, if you are needing batteries.  The spec sheet is on
the page.  2 or 3 of these paralleled would work well in an ET.

https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbatteryhookup.com%2Fproducts%2Fnew-38-4v-67ah-2-57kwh-lifepo4-battery-with-bms-36v&data=05%7C01%7C%7C579919c647cf4c29c7f108dbf011b198%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638367731067737895%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=ZhLiWlTujtzGhRxu5AofNSmv%2FYVvJi%2BbeZAWgMP1uEA%3D&reserved=0<https://batteryhookup.com/products/new-38-4v-67ah-2-57kwh-lifepo4-battery-with-bms-36v>

I converted mine to Lion a couple years ago, using these would be a lot
simpler.


_______________________________________________
Elec-trak mailing list
Elec-trak@cosmos.phy.tufts.edu
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcosmos.phy.tufts.edu%2Fmailman%2Flistinfo%2Felec-trak&data=05%7C01%7C%7C579919c647cf4c29c7f108dbf011b198%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638367731067746071%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=jhtK9SWqKo%2FLNYemyPNZO%2BaCGURwUTAwgJxDZgGgwlw%3D&reserved=0<https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak>

_______________________________________________
Elec-trak mailing list
Elec-trak@cosmos.phy.tufts.edu
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcosmos.phy.tufts.edu%2Fmailman%2Flistinfo%2Felec-trak&data=05%7C01%7C%7C579919c647cf4c29c7f108dbf011b198%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638367731067751360%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=%2BViMXD3wbrz9uBN2C0afy1%2Fg3w1IHI6GuLy2xFKbj9c%3D&reserved=0<https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://cosmos.phy.tufts.edu/mhonarc/elec-trak/attachments/20231128/2fc9b625/attachment.htm>
_______________________________________________
Elec-trak mailing list
Elec-trak@cosmos.phy.tufts.edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak

_______________________________________________
Elec-trak mailing list
Elec-trak@cosmos.phy.tufts.edu
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak