GerryAZ
Gold Member
Posts: 2250
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: LeafSpy Readings Questions

Thu Jun 20, 2019 10:16 pm

Convention is positive for current out of battery (discharging) and negative for current into the battery (charging or regeneration.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL+ purchased 8/10/2019

bobkart
Posts: 74
Joined: Sat Dec 22, 2018 12:17 am
Delivery Date: 14 Dec 2018
Leaf Number: 307853
Location: Pacific Northwest

Re: LeafSpy Readings Questions

Thu Jun 20, 2019 10:57 pm

GerryAZ wrote:Convention is positive for current out of battery (discharging) and negative for current into the battery (charging or regeneration.
I see, so I had it backwards; thanks for the correction. I guessed at negative for discharging as energy is being 'subtracted' from the battery (but obviously 'added' to the load).

I expect current flowing out of the battery *only*, since I've never connected LeafSpy while charging. Yet I see numbers ranging from -0.94A to +1.44A, in 15 days of taking measurements (one per day). I don't understand how I could ever see a negative number there, yet ten of those 15 readings are negative.
Pearl White 2016 Leaf S, 24kWh battery, 6.6kW charger upgrade
Nissan All-Season Floor Protectors
ClipperCreek LCS-25P (NEMA 14-50P)
BAFX OBD2 Reader, LeafSpy Pro
Ohmmu T12403 LiFePO4 12V Battery
Enkei Racing RPF1 16x7 Wheels (2x so far)

DaveinOlyWA
Posts: 14107
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: LeafSpy Readings Questions

Wed Jun 26, 2019 8:30 am

Samman wrote:(spam content removed)
Your 6 v statement is completely unrelated. Quick charging is like anything else. Perfectly fine when done in moderation. The obvious things to avoid is high SOC while pack is hot or simply letting the pack sit at high SOC at any temperature. Combine the two and the issues multiply.

FYI; the power being sent to the battery during a QC session pales in comparison to power used for acceleration and regen.

The ideology of driving gently is what should be emphasized but that has never gained much attention.
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

goldbrick
Posts: 577
Joined: Tue Aug 01, 2017 3:33 pm
Delivery Date: 01 Aug 2017
Leaf Number: 311806
Location: Boulder, CO

Re: LeafSpy Readings Questions

Wed Jun 26, 2019 9:57 am

Am I right to assume that the max regen power (and heat generation) is less than the max accel power (and heat generation)? I rarely need to accelerate very fast but I often peg the regen bars. I wonder if I should use the brakes a bit more and regen less....

DaveinOlyWA
Posts: 14107
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Feb 2018
Leaf Number: 314199
Location: Olympia, WA
Contact: Website

Re: LeafSpy Readings Questions

Wed Jun 26, 2019 11:15 am

goldbrick wrote:Am I right to assume that the max regen power (and heat generation) is less than the max accel power (and heat generation)? I rarely need to accelerate very fast but I often peg the regen bars. I wonder if I should use the brakes a bit more and regen less....
Your question is not asked correctly.

Max charge power is 50 KW (unless you have 30 kwh or 62 kwh pack) but max regen is about 38 KW in B mode, about 58 KW on E-Pedal.

Motor power max is 80 KW or more.

As far as using brakes more... yeah, that isn't even an option in my book. On extreme mountain descents, maybe but in normal day to day? NEVER
2011 SL; 44,598 miles. 2013 S; 44,840 miles.2016 S30 deceased. 29,413 miles. 2018 S40; 15,000 miles, 478 GIDs, 37.0 kwh 109.81 Ahr , SOH 94.61, Hx 120.15
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

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