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Re: LeafSpy Readings Questions

Posted: Thu Jun 20, 2019 10:16 pm
by GerryAZ
Convention is positive for current out of battery (discharging) and negative for current into the battery (charging or regeneration.

Re: LeafSpy Readings Questions

Posted: Thu Jun 20, 2019 10:57 pm
by bobkart
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.

Re: LeafSpy Readings Questions

Posted: Wed Jun 26, 2019 8:30 am
by DaveinOlyWA
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.

Re: LeafSpy Readings Questions

Posted: Wed Jun 26, 2019 9:57 am
by goldbrick
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....

Re: LeafSpy Readings Questions

Posted: Wed Jun 26, 2019 11:15 am
by DaveinOlyWA
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