cwerdna
Gold Member
Posts: 6708
Joined: Fri Jun 03, 2011 4:31 pm
Delivery Date: 28 Jul 2013
Location: SF Bay Area, CA

Re: New owner with some longevity questions

Tue Apr 11, 2017 9:57 pm

thebard wrote:How much does the SOH in LeafSpy typically fluctuate? After another week & another road trip, it's now reading 78%.

It's not that unusual for it to vary by 2% over a few week period. Your OP said 76% on March 31st.

BTW, I noticed a unit issue in your 1st post, it's miles/kWh, not miles/kw.

kW and kWh are very different metrics. It's the same as confusing gallons with horsepower. Think of kW = horsepower, kWh = gallons.

If one charges at 1 kW (or 1000 watts) for 6 hours, 6 kWh came out of the wall. If it's at 6 kW for 1 hour, it's also 6 kWh. If it's 1 watt for 6000 hours, it's also 6 kWh.

One pays for electricity at home in cents per kWh. There are a few utilities w/residential plans where they not only bill per kWh but also have demand charges, but that's rare and complicates calculations. (Demand charges aren't unusual on many commercial plans.)

Leaf has ~21 kWh usable battery but since charging isn't 100% efficient, it takes more than 21 kWh out of the wall to fully charge a dead Leaf. viewtopic.php?p=155305#p155305 has some figures, but it was before the '13+ Leaf w/optional 6 kW on-board charger.

(BTW, 1 hp = ~0.746 kW and 1 gallon of gasoline=33.7 kWh.)

'13 blue Leaf SV w/premium package (owned)
'13 blue Leaf SV w/QC + LED & premium packages (lease over, car returned)
'06 Prius

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