Resources
Battery insights, guides & product updates.
Everything we learn about keeping a Tesla battery healthy and holding its value, in one place.
Tesla Cell Balancing: The Supercharger Misunderstanding
Tesla cell balancing does not require a Supercharger. Learn why charging slows near 100% and how slow AC charging and Dr.EV can support balancing.
2026-10-29 · 3 min read
Uncategorized
A Long Trip Tomorrow? Finish Charging Close to Departure
Use Dr.EV’s Max Range Mode and Charge Completion Time to prepare a 100% charge for a long trip while reducing time spent parked fully charged.
2026-10-152 min read
Uncategorized
Help Your Battery Stay Warmer on Winter Mornings with Dr.EV
Use Dr.EV’s Charge Completion Time to finish AC charging near your morning departure and help your Tesla’s battery stay warmer in winter.
2026-10-121 min read
Uncategorized
How Battery Margins Affect Battery Life, Range, and SOH
EV battery buffers explained: how margins affect battery life, usable capacity, range and power, and why 100% SOH can coexist with battery aging.
2026-10-075 min read
Uncategorized
Tesla Battery Temperature at Different Charging Speeds
How Tesla battery temperatures vary with charging speed, how LFP and NCM/NCA compare, and why a battery can get warm even during slower charging.
2026-10-062 min read
Uncategorized
Tesla Korea Battery Warranty Extension and Eligibility — 30 September 2026 Announcement
Tesla Korea's September 2026 battery warranty extension: eligible vehicles, BMS a079 and a074 charging restrictions, mileage limits and VIN confirmation.
2026-10-043 min read
Uncategorized
Does the Battery Brand Help Sell an Electric Car?
Consumer research from China and Europe, plus NIQ's international findings, examines when battery supplier trust enters the EV buying decision.
2026-09-294 min read
Uncategorized
Why Tesla Warms the Battery Before Fast Charging
Six Tesla charging sessions show how battery temperature changes before connection and during fast charging, with research explaining why controlled heating can mitigate degradation.
2026-09-123 min read
Uncategorized
A Tesla Battery Pack Failure During a Drive: What Dr.EV Recorded
A real driving case in which Dr.EV recorded a sudden maximum cell-voltage gap near 40% battery level before shutdown; inspection found dents at both rear lifting points.
2026-09-075 min read
Uncategorized
Embedded EIS in EV Battery Management: What It Means and What Has Actually Been Proven
Traction-pack use cases, measured performance, production evidence and validation roadmap. Evidence current to 2 September 2026.
2026-09-0224 min read
Uncategorized
How to Know If Your Tesla Is Balancing Its Battery
Below are charging sessions from two Teslas, recorded in Dr.EV. Both cars charge to nearly full. The first graph is smooth. In the second, the highest cell voltage line turns into the teeth of a saw.…
2026-08-307 min read
Uncategorized
A Case of Tesla Battery Failure During Parking
Battery faults usually appear while the battery is working hard: during fast charging, hard acceleration, or hard braking. This one appeared while the car was parked. Among the recent failure cases w…
2026-08-253 min read
Get your Tesla's battery report free.
Put these insights to work. Run your first AI diagnosis in the app.