Weekly report
Every Monday at 08:00 (Thailand time, ICT), by email with a PDF attached — easy to keep or forward to a technician.
EV Guardian
Sample battery health report
EV Guardian members get an EV battery health report by email every Monday at 08:00 (Thailand time, ICT), with a PDF attached. Below is roughly what it looks like — all data is made up.
When are reports sent, and what is in them?
The weekly report goes out every Monday at 08:00 (Thailand time, ICT) to up to 3 confirmed email addresses. It explains the battery’s status in plain words, with the SOH trend, cell voltage spread, temperature and what to do next.
Instant alert email
When a confirmed level 2 or higher event happens. Level 2: at most one email per issue per day. Level 3 (danger): every time.
Send report now
Tap it on the car screen up to 3 times a day — before a service visit, for example.
Sample · made-up data
Sample weekly report
Made-up data for demonstration The numbers, car and box code in this sample are not real data from any car.
EVSENSE · EV Guardian
Weekly battery health report
This week in short
- Normal
- This week’s status: Watch
- See a service centre
The battery looks normal overall, with 1 thing to watch: the cell voltage spread at rest went up from last week. No need to visit a service centre yet, but keep an eye on next week’s report.
Danger-level alerts this week: none
Key numbers
- SOH (reported by the car)
- 96.1 %
- down 0.3 points over 8 weeks
- Max ΔV at rest
- 31 mV
- last week 14 mV · watch
- Max battery temperature
- 41 °C
- during DC fast charging · normal
- Insulation resistance
- Normal
- all week
- Charging sessions
- 5
- 2 of them DC fast charging
- Distance
- 412 km
- this week
8-week SOH trend
SOH is easing down slowly with no sudden drops. These are the car’s own values — EVSense does not measure SOH itself.
Cell map
- Close to average
- Cell #47: 31 mV below the others at rest
Only on cars that report per-cell data. Simplified for this demo — the number of squares is not the car’s real cell count.
Things to watch (1)
Cell voltage spread at rest (ΔV) went up
Cell #47 sat 31 mV below the others at rest, up from around 12–15 mV in previous weeks.
What to do
- Keep driving as usual.
- If you can, charge to full on AC and leave the car parked for a while so the car’s battery management system (BMS) can balance the cells.
- If it keeps rising next week, or a dashboard warning comes on, book a service centre check and mention this to the technician.
This report is not a battery health certificate.
- SOH is the value reported by the car; EVSense does not measure it.
- The Normal / Watch / See a service centre thresholds are general engineering values, not figures from the car maker.
- The car’s BMS and dashboard warnings remain the primary protection. If a warning comes on, follow the owner’s manual first.
- This report contains no VIN and no location data.
- Sent from [email protected]. Unsubscribe any time with the link at the bottom of the email.
What do Normal, Watch and See a service centre mean?
Every report sums things up in one of three statuses, so you know at a glance whether to act.
Normal
Nothing needs doing — drive as usual.
Watch
Something has changed from its usual level. No service visit yet, but keep an eye on the next report.
See a service centre
Book a service centre check and show the report to the technician.
Know the limits
EV Guardian helps you monitor and get alerts; it is not a certified safety device. The car's BMS and dashboard warnings remain the primary protection. SOH is the value reported by the car, not our own measurement. Every report is not a battery health certificate.