EV Insurance: How Much Battery Coverage Do You Get? Watch Out for These 3 Conditions Before Buying! | PrakanEV

One of the biggest fears for EV owners is: "If I crash and the battery gets destroyed, will insurance cover the full amount?" Because as we all know, the battery alone accounts for over 50-70% of the car's total value. For example, if you drive a BYD Sealion 7 or a Tesla Model 3 and get into an accident that damages the battery, the replacement cost could easily hit 400,000 - 600,000 THB.

In this article, PrakanEV — as electric vehicle insurance specialists — will break down the policy terms and reveal exactly what percentage of battery cost EV insurance actually covers. We'll also share tips on picking the right sum insured and how to solve the long repair wait times that frustrate so many EV owners in Thailand.

1. Battery Coverage Terms (Depreciation by Vehicle Age)

According to the OIC (Office of Insurance Commission) standards, EV insurance covers the battery at a maximum of 90% of the cost of a brand-new battery in the first year. (Some insurers may offer up to 100% as a special case.)

From there, coverage is subject to depreciation based on the vehicle's age, decreasing by an average of 10% per year. The good news is that the OIC mandates that battery coverage must never drop below 50% throughout the life of the policy. This means even a 10-year-old car still gets 50% battery coverage from insurance!

2. Beware These 3 Exclusions — When Insurance Might NOT Pay for Your Battery!

Having Class 1 insurance doesn't mean you can claim for everything at 100%. If the damage results from any of the following, you may have to pay out of your own pocket:

1. Battery degradation over time: Car insurance only covers "accidents." If your battery health (SOH) naturally declines, you need to claim under the manufacturer's warranty instead (typically 8 years or 160,000 km).
2. Modifying the battery or electrical system: If you tamper with the battery software, change to oversized wheels that lower your ground clearance (risking underbody scrapes), or install uncertified electronic accessories that cause a short circuit — the insurer has the right to deny the claim immediately.
3. Improper vehicle use: Using a personal vehicle for commercial ride-hailing services (such as Grab or Bolt) or participating in motor sport racing — if an accident occurs and the battery is damaged, it will be considered a breach of policy terms.

3. The Long Parts-Wait Problem... Solved with "Dealer Repair" Insurance

One of the biggest pain points for EV owners is "the car was in a serious crash and now it's stuck waiting for parts for months." Some cases involve waiting 3-4 months just for a new battery!

The best solution is choosing "Class 1 Insurance with Dealer Repair (authorized service center)."

Why dealer repair? Because authorized service centers have direct relationships with the manufacturer, allowing them to order specialized parts (like batteries and sensors) far faster than independent garages. Moreover, repairing high-voltage systems requires the service center's proprietary software to reset the system after repairs. If an independent garage handles it, your car could lose its manufacturer warranty entirely.

Pro Tips: Choose EV Insurance for Maximum Protection!

If you want to keep your battery coverage as comprehensive as possible, we recommend considering these factors:

• Choose a sum insured at 80-90% of market value: This prevents the problem of insufficient coverage when a severe crash results in a battery total loss.
• Add Roadside Service coverage: EVs are harder to move than gas cars. Having a tow truck equipped specifically for electric vehicles is essential.
• Check the named driver option: A named-driver EV insurance policy can earn you an additional 5-10% premium discount.

Before you decide, compare EV insurance from several insurers on our homepage — you will see premiums and coverage side by side.