SM
Sarah Mitchell
● ActiveUrgent Risksarah.m@fleetco.com·+61 413 002 002·DL-VIC-234·Joined February 2024
ACharging Grade98/100
Assigned Vehicle
2019 Nissan LEAF Plus
Trim
62 kWh SL
License Plate
EV-3342
Chemistry
NMC
Capacity
62 kWh
EPA Range
364 km
Battery State of Health
77.2%fair
Capacity
47.9 / 62 kWh
Degradation
22.8% from new
Rate
7.8%/yr
To 80% SOH
0.0 yrs
Confidence
medium
Lifetime Projection
Current trajectory
3 yrs
to battery replacement
With prescriptions
3.6 yrs
+0.6 yrs saved
Daily SOC target
80%
Max charge limit
80%
Charging Behaviour — 48 sessions
Avg Start SOC
40.8%
Avg End SOC
87.2%
Avg Session
167 min
Monthly Energy
1404.1 kWh
DC Fast Usage
18.8%
Deep Discharges
0%
Overcharge Events
35.4%
Overnight Chg
58.3%
Charging Time Pattern
Overnight
40%
Afternoon
23%
Evening
19%
Morning
19%
Monthly Energy Usage
Jan 26
kWh
Feb 26
kWh
Mar 26
kWh
Apr 26kWh
180.8
May 26kWh
810
June 26kWh
315.3
Recent Sessions
| Date | Start | End | Added | Type | Location |
|---|---|---|---|---|---|
| 2026-06-12 | 54% | 100% | 27.78 kWh | DC | home |
| 2026-06-11 | 61% | 100% | 23.28 kWh | L1 | work |
| 2026-06-10 | 32% | 100% | 39.7 kWh | L1 | work |
| 2026-06-09 | 55% | 96% | 23.56 kWh | L2 | home |
| 2026-06-08 | 25% | 100% | 43.05 kWh | L2 | work |
| 2026-06-07 | 35% | 74% | 22.77 kWh | DC | work |
Identified Risks
Frequent full 100% charges (35% of sessions)high impact
Fix: Set vehicle charge limit to 80% in app settings.
Cell voltage imbalance detected in OBD-II scanhigh impact
Fix: Complete a full charge cycle to allow BMS balancing. Book inspection.
Charging Prescriptions
Set daily charge limit to 80%high
Charging to 100% regularly accelerates electrolyte oxidation in NMC chemistry. Limiting to 80% extends cycle life by up to 40%.
Now: 35% of sessions charged to 100%
Target: Daily limit: 80%. Charge to 100% only before long trips.
+0.9 yr battery life
Predictive Maintenance Schedule
UrgentDec 2026
Battery Health Inspection
Scheduled health inspection based on current SOH of 77.2%. Inspection every 6 months recommended.
$95–$160+4 mo life
Full diagnostic scan including BMS logs, capacity test, and cell impedance check.
SoonSept 2026
Cell Rebalancing
Cell voltage spread detected. Imbalanced cells reduce usable capacity and accelerate degradation of weak cells.
$120–$220+8 mo life
Book a full charge cycle with active balancing at an authorised service centre. Avoid DC fast charging until resolved.
SoonJune 2026
Thermal Management Service
Degradation rate of 7.8%/year suggests heat exposure. Thermal paste and coolant check recommended at this stage.
$180–$350+14 mo life
Replace battery thermal interface material and inspect coolant loop. Park in shade/garage where possible.
SoonOct 2026
NMC Electrolyte Check
NMC chemistry is sensitive to high SOC storage and elevated temperature. Electrolyte condition degrades faster above 85% regular charge level.
$80–$140+18 mo life
Set charge limit to 80% for daily use. Only charge to 100% before long trips.
PlannedDec 2026
BMS Software Update
Manufacturer BMS updates often improve cell balancing algorithms and charge curve accuracy, extending usable life.
Free+6 mo life
Check for OTA updates via vehicle manufacturer app. If unavailable, request update at next service.