DC
David Chen
● ActiveSoon Riskdavid.c@fleetco.com·+61 414 003 003·DL-QLD-445·Joined March 2024
ACharging Grade92/100
Assigned Vehicle
2020 Chevrolet Bolt EV
Trim
LT
License Plate
EV-6614
Chemistry
NMC
Capacity
65 kWh
EPA Range
417 km
Battery State of Health
88.3%good
Capacity
57.4 / 65 kWh
Degradation
11.7% from new
Rate
5.0%/yr
To 80% SOH
1.7 yrs
Confidence
high
Lifetime Projection
Current trajectory
3.6 yrs
to battery replacement
With prescriptions
4.3 yrs
+0.7 yrs saved
Daily SOC target
80%
Max charge limit
80%
Charging Behaviour — 48 sessions
Avg Start SOC
41.8%
Avg End SOC
85.7%
Avg Session
169 min
Monthly Energy
1401 kWh
DC Fast Usage
20.8%
Deep Discharges
0%
Overcharge Events
41.7%
Overnight Chg
45.8%
Charging Time Pattern
Afternoon
33%
Overnight
23%
Evening
23%
Morning
21%
Monthly Energy Usage
Jan 26
kWh
Feb 26
kWh
Mar 26
kWh
Apr 26kWh
115.9
May 26kWh
886
June 26kWh
301.3
Recent Sessions
| Date | Start | End | Added | Type | Location |
|---|---|---|---|---|---|
| 2026-06-12 | 21% | 63% | 26.24 kWh | L2 | home |
| 2026-06-11 | 35% | 100% | 39.71 kWh | L2 | home |
| 2026-06-10 | 55% | 100% | 27.46 kWh | DC | home |
| 2026-06-09 | 39% | 60% | 13.15 kWh | DC | home |
| 2026-06-08 | 22% | 81% | 37.09 kWh | L1 | home |
| 2026-06-07 | 28% | 63% | 21.37 kWh | DC | public |
Identified Risks
Frequent full 100% charges (42% of sessions)high impact
Fix: Set vehicle charge limit to 80% in app settings.
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: 42% of sessions charged to 100%
Target: Daily limit: 80%. Charge to 100% only before long trips.
+1 yr battery life
Predictive Maintenance Schedule
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
Thermal Management Service
Degradation rate of 5.0%/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.
PlannedJune 2027
Battery Health Inspection
Scheduled health inspection based on current SOH of 88.3%. Inspection every year recommended.
$95–$160+4 mo life
Full diagnostic scan including BMS logs, capacity test, and cell impedance check.
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.