AdventureMuffin
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Modules and instructions for upgrading battery from 24-40 kwh?

Fri Nov 19, 2021 8:58 pm

Hi,
With only 6 bars showing, time to do something with the battery pack (or car). Rather than buying salvaged battery pack, wondering if there is someone willing to share the beta on how and what to buy to turn a 24 kwh, 2013 leaf battery pack into a 40 kwh new battery, alone with any additional equipment needed for the car to read this upgraded battery?
Thanks in advance
David

alozzy
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Fri Nov 19, 2021 10:35 pm

A DIY module swap, to replace 24 kWh modules with 40 kWh modules in your existing pack, isn't viable.

Look for a salvage pack, it's the only viable option.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
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LeftieBiker
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Fri Nov 19, 2021 11:37 pm

The architecture is completely different. The 30kwh pack is very nearly the same, but a used 30kwh pack would be a big risk unless you knew that it had 11-12 bars AFTER the BMS update and a 3+ month wait.

...But since you seem to be looking for the hardest possible upgrade, maybe use the case to house a few thousand 18650 cells? :)
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DaveinOlyWA
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Sat Nov 20, 2021 9:21 am

AdventureMuffin wrote:
Fri Nov 19, 2021 8:58 pm
Hi,
With only 6 bars showing, time to do something with the battery pack (or car). Rather than buying salvaged battery pack, wondering if there is someone willing to share the beta on how and what to buy to turn a 24 kwh, 2013 leaf battery pack into a 40 kwh new battery, alone with any additional equipment needed for the car to read this upgraded battery?
Thanks in advance
David
Salvage would be cheaper by as much as 300%. As far as "adding" capacity to the current battery? Not really feasible and would take up most of your hatch space in the process.

The other basic point to ponder; your pack is as good as its weakest cell so you would go from a highly degraded 24 kwh pack to a highly degraded 40 kwh pack.

You might want to examine your issues with salvage. Personally I can't imagine why you are against the idea. Its not buying used underwear.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 25,047 mi, 92.12% SOH
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AdventureMuffin
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Sat Nov 20, 2021 10:12 am

For clarity, I am investigating how to rebuild the battery pack with higher density modules that are new and would yield 40kwh. The cost and the means to do so. Its possible, as there are companies doing that right now (see for example: https://evsenhanced.com/services/hv-bat ... -upgrades/) , but most are buying up salvaged battery packs, driving the market price up and giving a product with a set of batteries that are already at half life if not more. Makes more sense to me to learn to replace the modules with new rather than used batteries, given the 10 year life of these batteries. That coupled with the software and hardware upgrades necessary to read the upgraded 40 kwh battery is the information many DIYs are looking for.

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Stanton
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Sat Nov 20, 2021 10:20 am

AdventureMuffin wrote:
Sat Nov 20, 2021 10:12 am
For clarity, I am investigating how to rebuild the battery pack with higher density modules that are new and would yield 40kwh. The cost and the means to do so. Its possible, as there are companies doing that right now (see for example: https://evsenhanced.com/services/hv-bat ... -upgrades/) , but most are buying up salvaged battery packs, driving the market price up and giving a product with a set of batteries that are already at half life if not more. Makes more sense to me to learn to replace the modules with new rather than used batteries, given the 10 year life of these batteries. That coupled with the software and hardware upgrades necessary to read the upgraded 40 kwh battery is the information many DIYs are looking for.
It's obvious you don't understand how your referenced example is doing the upgrades...and choose to ignore the "simple" answers/advice that have been given.
Good luck with your project.
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DaveinOlyWA
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Sat Nov 20, 2021 10:32 am

AdventureMuffin wrote:
Sat Nov 20, 2021 10:12 am
For clarity, I am investigating how to rebuild the battery pack with higher density modules that are new and would yield 40kwh. The cost and the means to do so. Its possible, as there are companies doing that right now (see for example: https://evsenhanced.com/services/hv-bat ... -upgrades/) , but most are buying up salvaged battery packs, driving the market price up and giving a product with a set of batteries that are already at half life if not more. Makes more sense to me to learn to replace the modules with new rather than used batteries, given the 10 year life of these batteries. That coupled with the software and hardware upgrades necessary to read the upgraded 40 kwh battery is the information many DIYs are looking for.
they are doing what?

You have any clarity on that? I know a few people in the battery refurb biz who are familiar with the company you referenced and from their interactions to that company as relayed to me says you are quite far off base with what they are actually doing.

Now, there is a Chinese company that was putting packs together but the cost was high and they have yet to produce a single paying customer to my knowledge and they started this "venture" years ago. Another in EU is creating packs to retrofit gassers who claims its not even close to financially feasible to do the same with the LEAF.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 25,047 mi, 92.12% SOH
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alozzy
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Sat Nov 20, 2021 11:43 am

Muxsan sells battery extender products, that required years of development by a very smart power electronics engineer, that install in the trunk:

https://www.muxsan.com/English/products ... y-extender

Only available in parts of Europe.

However, pricing isn't any better than obtaining a salvage pack amd there's no 62 kWh option.

It would be less expensive to buy a used 2018 (40 kWh) LEAF than what you are proposing to do. Your chances of success with swapping newer modules into an older Leaf are next to zero, to be blunt. Even if you pull it off, the cost would be outrageous.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV :D

goldbrick
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Re: Modules and instructions for upgrading battery from 24-40 kwh?

Sat Nov 20, 2021 11:58 am

There might be some info in this thread: viewtopic.php?f=34&t=27600&p=546430&hil ... le#p546430

Or contact user Dala. He knows just about all there to know about this sort of stuff.

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