Battery percentage drops overnight even when parked — BYD Sealion 7
Some users have noticed that the battery level drops by a few percent overnight even when the car is not in use. This creates anxiety about range loss.
Severity: Medium | Repair Cost in India: ₹0 – ₹5,000 | Affected Years: 2024-2026 | Frequency: Common
What is the “Battery percentage drops overnight even when parked” problem?
Some users have noticed that the battery level drops by a few percent overnight even when the car is not in use. This creates anxiety about range loss.
Impact on driving: Reduced driving range and frequent charging requirement.
Issue Details at a Glance
- Severity
- Medium
- Impact
- Reduced driving range and frequent charging requirement.
- Estimated Repair Cost
- ₹0 – ₹5,000 (parts + labour, Indian workshops)
- Affected Years
- 2024-2026
- Frequency
- Common
Symptoms to Watch For
- Battery drops 2-5% overnight
- No driving but range reduces
Likely Causes
- Background systems running
- Battery management system calibration issue
Recommended Solutions
- Update software
- Disable unnecessary background features
- Check at service center
Prevention Tips
- Keep software updated
- Avoid leaving high-drain features ON
Should you worry about this issue?
This is a medium severity issue on the BYD Sealion 7. Plan a workshop visit within a few days. Ignoring it usually leads to higher repair bills later.