MikeD
Posts: 704
Joined: Thu Jun 24, 2010 6:14 am
Delivery Date: 12 May 2011
Leaf Number: 592

Re: Battery Upgrades are very possible

Fri Dec 27, 2019 11:39 am

Daklein: Thanks for your pioneering spirit in this area in general and your response to my question in particular! One follow-up question: should this device also work if one were to replace one's original pack with a smaller capacity one? E.g. one buys a new 62 Leaf (for the newer features, etc but doesn't need that amount of range) and decides to exchange it with someone else's Leaf with a 40 (or even a 30) battery pack? (I guess this may make more sense if the device cost drops significantly, which should happen eventually.)

Daklein
Posts: 79
Joined: Fri Sep 06, 2019 7:58 pm
Delivery Date: 02 Sep 2019
Location: Hartland, MI

Re: Battery Upgrades are very possible

Fri Dec 27, 2019 1:06 pm

MikeD wrote:
Fri Dec 27, 2019 11:39 am
One follow-up question: should this device also work if one were to replace one's original pack with a smaller capacity one? E.g. one buys a new 62 Leaf (for the newer features, etc but doesn't need that amount of range) and decides to exchange it with someone else's Leaf with a 40 (or even a 30) battery pack? (I guess this may make more sense if the device cost drops significantly, which should happen eventually.)
The CAN bridge method should work in the same way, the GOM related scaling messages would be different, but the battery pairing should be the same.

The mechanical part would be different, but anything can be done. The 62 car has a lower extended frame rail on the sides, and a new 62 car with a shallower 24/30/40 pack would have the pack sitting lower with spacers at the front and back, and that would misalign the big DC at the front. Or cut the side frame extensions off the car. Swap the rear brackets with the battery also. Vs. the way I'm going where the front and rear mounts are the same height, and add 40mm spacers on the sides.

Propilot and other features are available on the 40 kWhr Leaf though, I'd go with that.
2014 Leaf S Plus :o (12/2019 62kWh swap!)

MikeD
Posts: 704
Joined: Thu Jun 24, 2010 6:14 am
Delivery Date: 12 May 2011
Leaf Number: 592

Re: Battery Upgrades are very possible

Fri Dec 27, 2019 2:43 pm

So is the 2019 (and 2020?) Leaf bodies' underneath battery pack support different between the 40 and 62 battery pack models? If so, since the 62 pack is significantly heavier than the 40 such a difference for the 62 body might have been deemed desirable for additional support?

Daklein
Posts: 79
Joined: Fri Sep 06, 2019 7:58 pm
Delivery Date: 02 Sep 2019
Location: Hartland, MI

Re: Battery Upgrades are very possible

Fri Dec 27, 2019 3:00 pm

Just the Plus version is a little different for mounting the 62 kWhr battery, which has 40 mm additional depth, but some of the mounting points are still the same. More discussion back here: https://mynissanleaf.com/viewtopic.php? ... 80#p572415
2014 Leaf S Plus :o (12/2019 62kWh swap!)

Daklein
Posts: 79
Joined: Fri Sep 06, 2019 7:58 pm
Delivery Date: 02 Sep 2019
Location: Hartland, MI

Re: Battery Upgrades are very possible

Tue Dec 31, 2019 8:47 pm

Happy New Year! I hear the happy Leaf sound again! The 62kWhr pack is bolted up and powered up. Thanks to mux and the Muxsan can bridge, it just works! The GOM seems reasonable for the current SOC. Only driven on the jackstands so far, but looks good. Forward, Reverse, and charges fine.

I still need to fuss with putting the covers on (not sure how many of the mounting points will line up), and wrap up a couple other mechanical items. There may be some minor items with the bridge to do (some leafspy data seems missing, and I'll want to set up the bridge with Dala's ending SOC charging control.)

https://youtu.be/53Kh1jo9MsU
https://photos.app.goo.gl/tcVLm3SHCtozeLSa6
2014 Leaf S Plus :o (12/2019 62kWh swap!)

MikeD
Posts: 704
Joined: Thu Jun 24, 2010 6:14 am
Delivery Date: 12 May 2011
Leaf Number: 592

Re: Battery Upgrades are very possible

Wed Jan 01, 2020 4:37 am

Look forward to your future posts in this thread...
Last edited by MikeD on Wed Jan 01, 2020 4:43 am, edited 1 time in total.

MikeD
Posts: 704
Joined: Thu Jun 24, 2010 6:14 am
Delivery Date: 12 May 2011
Leaf Number: 592

Re: Battery Upgrades are very possible

Wed Jan 01, 2020 4:40 am

Congratulations!: Do you expect that you will normally charge up to ~80% (for battery pack health) when you expect not to need the maximum range during a given day?

Oils4AsphaultOnly
Posts: 751
Joined: Sat Oct 10, 2015 4:09 pm
Delivery Date: 20 Nov 2016
Leaf Number: 313890
Location: Arcadia, CA

Re: Battery Upgrades are very possible

Wed Jan 01, 2020 9:30 am

Daklein wrote:
Tue Dec 31, 2019 8:47 pm
Happy New Year! I hear the happy Leaf sound again! The 62kWhr pack is bolted up and powered up. Thanks to mux and the Muxsan can bridge, it just works! The GOM seems reasonable for the current SOC. Only driven on the jackstands so far, but looks good. Forward, Reverse, and charges fine.

I still need to fuss with putting the covers on (not sure how many of the mounting points will line up), and wrap up a couple other mechanical items. There may be some minor items with the bridge to do (some leafspy data seems missing, and I'll want to set up the bridge with Dala's ending SOC charging control.)

https://youtu.be/53Kh1jo9MsU
https://photos.app.goo.gl/tcVLm3SHCtozeLSa6
Congrats on the new batt! But are those temp bars correct?!
:: Model 3 LR :: acquired 9 May '18
:: Leaf S30 :: build date: Sep '16 :: purchased: Nov '16
100% Zero transportation emissions (except when I walk) and loving it!

Daklein
Posts: 79
Joined: Fri Sep 06, 2019 7:58 pm
Delivery Date: 02 Sep 2019
Location: Hartland, MI

Re: Battery Upgrades are very possible

Wed Jan 01, 2020 9:52 am

MikeD wrote:
Wed Jan 01, 2020 4:40 am
Congratulations!: Do you expect that you will normally charge up to ~80% (for battery pack health) when you expect not to need the maximum range during a given day?
Yes, I think we'll charge to a lower SOC normally, 50% would do more than our typical use now. If we're going further and depending on where we're going, charge more at home, or stop at a fast charger.
2014 Leaf S Plus :o (12/2019 62kWh swap!)

Daklein
Posts: 79
Joined: Fri Sep 06, 2019 7:58 pm
Delivery Date: 02 Sep 2019
Location: Hartland, MI

Re: Battery Upgrades are very possible

Wed Jan 01, 2020 9:55 am

Oils4AsphaultOnly wrote:
Wed Jan 01, 2020 9:30 am
Congrats on the new batt! But are those temp bars correct?!
Funny, youtube chose the still image that had the most lit up on the dash, during the key-up sweep of the display.
2014 Leaf S Plus :o (12/2019 62kWh swap!)

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